chore(release): publish [skip ci]

- @ohif/extension-cornerstone@2.11.0
 - @ohif/extension-vtk@1.11.17
 - @ohif/core@2.14.0
 - @ohif/ui@1.10.0
 - @ohif/viewer@4.10.0

.gitignore

@@ -9,6 +9,7 @@ src/version.js
 junit.xml
 coverage/
 .docz/
+*.js.map
 
 # YALC (for Erik)
 .yalc
@@ -34,3 +35,4 @@ screenshots/
 
 # Locize settings
 .locize
+

.vscode/launch.json

@@ -0,0 +1,15 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "pwa-chrome",
+      "request": "launch",
+      "name": "Launch Chrome against localhost",
+      "url": "http://localhost:3000",
+      "webRoot": "${workspaceFolder}"
+    }
+  ]
+}

CITATION.cff

@@ -0,0 +1,24 @@
+cff-version: 1.2.0
+message: "If you use this software, please cite it as below."
+authors:
+- family-names: "Ziegler"
+  given-names: "Erik"
+  orcid: "https://orcid.org/0000-0003-1857-8129"
+- family-names: "Urban"
+  given-names: "Trinity"
+- family-names: "Brown"
+  given-names: "Danny"
+- family-names: "Petts"
+  given-names: "James"
+- family-names: "Pieper"
+  given-names: "Steve D"
+- family-names: "Lewis"
+  given-names: "Rob"
+- family-names: "Hafey"
+  given-names: "Chris"
+- family-names: "Harris"
+  given-names: "Gordon J"
+title: "Open Health Imaging Foundation Viewer: An Extensible Open-Source Framework for Building Web-Based Imaging Applications to Support Cancer Research"
+doi: 10.1200/CCI.19.00131
+version: 1.0.0
+url: "https://github.com/OHIF/Viewers"

Dockerfile

@@ -53,7 +53,7 @@ RUN yarn run build
 
 # Stage 2: Bundle the built application into a Docker container
 # which runs Nginx using Alpine Linux
-FROM nginx:1.15.5-alpine
+FROM nginx:1.21.1-alpine
 RUN apk add --no-cache bash
 RUN rm -rf /etc/nginx/conf.d
 COPY .docker/Viewer-v2.x /etc/nginx/conf.d

docs/latest/viewer/configuration.md

@@ -67,6 +67,33 @@ window.config = {
   extensions: [],
   showStudyList: true,
   filterQueryParam: false,
+  /**
+   * Disable caching of servers configuration.
+   *
+   * There will be no effect if you update the servers property of this config
+   * while your application is running because this property is cached in local storage.
+   */
+  disableServersCache: false,
+  /**
+   * OHIF's study prefetcher configuration.
+   *
+   * @param {boolean} enabled Whether to enable/disable OHIF's study prefetcher
+   * @param {('all'|'closest'|'downward'|'upward'|'topdown')} order Fetching order: all display sets, the closest ones, downward or top down fashion based on the currently selected display set
+   * @param {number} displaySetCount How much display sets should be prefetched at once (note: this attribute is ignored if order was set to 'all')
+   * @param {boolean} preventCache Prevent images to be cached in Cornerstone Tools's request pool manager
+   * @param {number} prefetchDisplaySetsTimeout Prefetch timeout
+   * @param {boolean} displayProgress Whether to display or not the progress bar in the display set
+   * @param {boolean} includeActiveDisplaySet Include or not the active display set while prefetching
+   */
+  studyPrefetcher: {
+    enabled: true,
+    order: 'all',
+    displaySetCount: 1,
+    preventCache: false,
+    prefetchDisplaySetsTimeout: 300,
+    displayProgress: false,
+    includeActiveDisplaySet: true,
+  },
   servers: {
     dicomWeb: [
       {
@@ -81,7 +108,14 @@ window.config = {
       },
     ],
   },
-  // Supported Keys: https://craig.is/killing/mice
+  /**
+   * Hotkey definitions.
+   * Supported Keys: https://craig.is/killing/mice
+   *
+   * @param {string} commandName
+   * @param {string} label
+   * @param {array} keys
+   */
   hotkeys: [
     { commandName: 'rotateViewportCW', label: 'Rotate Right', keys: ['r'] },
     { commandName: 'rotateViewportCCW', label: 'Rotate Left', keys: ['l'] },
@@ -97,14 +131,16 @@ window.config = {
       keys: ['v'],
     },
   ],
-  /* Configuration passed to the bundled cornerstone extension
+  /**
+   * Configuration passed to the bundled cornerstone extension
    *
    * The cornerstone extension is currently tightly coupled to the platform.
    * Until we're able to decouple it, this key will serve as a workaround to
    * pass it configuration.
+   *
+   * @param {boolean} hideHandles Whether to show/hide annotation "handles"
    */
   cornerstoneExtensionConfig: {
-    /* Whether to show/hide annotation "handles" */
     hideHandles: true,
   },
 };

docs/latest/viewer/studyPrefetcher.md

@@ -0,0 +1,37 @@
+# Viewer: Study Prefetcher & Stack Prefetch
+
+Prefetching the stack of images of the active viewport is enabled by default for
+cornerstone viewports via cornerstone tools's stack prefetch functionality.
+
+In order to have a more customizable alternative for prefetching, OHIF provides
+a built-in study prefetcher functionality which allows the user to set the order
+in which the display sets are prefetched, the granularity, the timeout and
+whether or not display a progress bar in the display set (close to the thumbnail
+image) in the study browser.
+
+You can customize these options via the viewer's configuration:
+
+```js
+window.config = {
+  /**
+   * OHIF's study prefetcher configuration.
+   *
+   * @param {boolean} enabled Whether to enable/disable OHIF's study prefetcher
+   * @param {('all'|'closest'|'downward'|'upward'|'topdown')} order Fetching order: all display sets, the closest ones, downward or top down fashion based on the currently selected display set
+   * @param {number} displaySetCount How much display sets should be prefetched at once (note: this attribute is ignored if order was set to 'all')
+   * @param {boolean} preventCache Prevent images to be cached in Cornerstone Tools's request pool manager
+   * @param {number} prefetchDisplaySetsTimeout Prefetch timeout
+   * @param {boolean} displayProgress Whether to display or not the progress bar in the display set
+   * @param {boolean} includeActiveDisplaySet Include or not the active display set while prefetching
+   */
+  studyPrefetcher: {
+    enabled: true,
+    order: 'all',
+    displaySetCount: 1,
+    preventCache: false,
+    prefetchDisplaySetsTimeout: 300,
+    displayProgress: false,
+    includeActiveDisplaySet: true,
+  },
+};
+```

extensions/cornerstone/CHANGELOG.md

@@ -3,6 +3,28 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [2.11.0](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.10.10...@ohif/extension-cornerstone@2.11.0) (2021-09-09)
+
+
+### Features
+
+* OHIF-1000: Study prefetcher ([#2466](https://github.com/OHIF/Viewers/issues/2466)) ([8f26045](https://github.com/OHIF/Viewers/commit/8f2604509d24092b721f1333289d838820d68cac))
+
+
+
+
+
+## [2.10.10](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.10.9...@ohif/extension-cornerstone@2.10.10) (2021-07-26)
+
+
+### Bug Fixes
+
+* changed new image handler conditional for 0 edge case ([#2338](https://github.com/OHIF/Viewers/issues/2338)) ([b8ae92c](https://github.com/OHIF/Viewers/commit/b8ae92c2d4f733b3ca89826118029685650b396a))
+
+
+
+
+
 ## [2.10.9](https://github.com/OHIF/Viewers/compare/@ohif/extension-cornerstone@2.10.8...@ohif/extension-cornerstone@2.10.9) (2021-06-02)
 
 

extensions/cornerstone/README.md

@@ -85,12 +85,32 @@ Tools can be configured through extension configuration using the tools key:
   ...
 ```
 
+## Stack prefetch configuration
+
+Stack prefetch can be configured through extension configuration using the
+stackPrefetch key:
+
+```js
+  ...
+  cornerstoneExtensionConfig: {
+    stackPrefetch: {
+      enabled: true,
+      maxImagesToPrefetch: Infinity,
+      preserveExistingPool: false,
+      maxSimultaneousRequests: 20,
+    },
+  },
+  ...
+```
+
 ## Annotate Tools Configuration
 
-*We currently support one property for annotation tools.*
+_We currently support one property for annotation tools._
 
 ### Hide handles
-This extension configuration allows you to toggle on/off handle rendering for all annotate tools:
+
+This extension configuration allows you to toggle on/off handle rendering for
+all annotate tools:
 
 ```js
   ...
@@ -119,3 +139,4 @@ This extension configuration allows you to toggle on/off handle rendering for al
 [cornerstone-tools]: https://github.com/cornerstonejs/cornerstoneTools
 [cornerstone]: https://github.com/cornerstonejs/cornerstone
 <!-- prettier-ignore-end -->
+```

extensions/cornerstone/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-cornerstone",
-  "version": "2.10.9",
+  "version": "2.11.0",
   "description": "OHIF extension for Cornerstone",
   "author": "OHIF",
   "license": "MIT",

extensions/cornerstone/src/ConnectedCornerstoneViewport.js

@@ -53,7 +53,11 @@ const mapStateToProps = (state, ownProps) => {
     // Currently justing using escape hatch + commands
     // activeTool: activeButton && activeButton.command,
     ...dataFromStore,
-    isStackPrefetchEnabled: isActive,
+    isStackPrefetchEnabled: ownProps.hasOwnProperty('isStackPrefetchEnabled')
+      ? ownProps.isStackPrefetchEnabled
+      : ownProps.stackPrefetch
+      ? ownProps.stackPrefetch.enabled
+      : isActive,
     isPlaying,
     frameRate,
     //stack: viewportSpecificData.stack,

extensions/cornerstone/src/OHIFCornerstoneViewport.js

@@ -1,6 +1,6 @@
 import React, { Component } from 'react';
 
-import OHIFCornerstoneViewportOverlay from './components/OHIFCornerstoneViewportOverlay'
+import OHIFCornerstoneViewportOverlay from './components/OHIFCornerstoneViewportOverlay';
 import ConnectedCornerstoneViewport from './ConnectedCornerstoneViewport';
 import OHIF from '@ohif/core';
 import PropTypes from 'prop-types';
@@ -15,6 +15,7 @@ class OHIFCornerstoneViewport extends Component {
 
   static defaultProps = {
     customProps: {},
+    isStackPrefetchEnabled: true,
   };
 
   static propTypes = {
@@ -23,6 +24,8 @@ class OHIFCornerstoneViewport extends Component {
     viewportIndex: PropTypes.number,
     children: PropTypes.node,
     customProps: PropTypes.object,
+    stackPrefetch: PropTypes.object,
+    isStackPrefetchEnabled: PropTypes.bool,
   };
 
   static id = 'OHIFCornerstoneViewport';
@@ -221,7 +224,7 @@ class OHIFCornerstoneViewport extends Component {
       const { displaySet } = this.props.viewportData;
       const { StudyInstanceUID } = displaySet;
 
-      if (currentImageIdIndex > 0) {
+      if (currentImageIdIndex >= 0) {
         this.props.onNewImage({
           StudyInstanceUID,
           SOPInstanceUID: sopInstanceUid,
@@ -232,7 +235,12 @@ class OHIFCornerstoneViewport extends Component {
     };
 
     const warningsOverlay = props => {
-      return <OHIFCornerstoneViewportOverlay {...props} inconsistencyWarnings={inconsistencyWarnings} />
+      return (
+        <OHIFCornerstoneViewportOverlay
+          {...props}
+          inconsistencyWarnings={inconsistencyWarnings}
+        />
+      );
     };
 
     return (
@@ -244,10 +252,11 @@ class OHIFCornerstoneViewport extends Component {
           onNewImageDebounced={newImageHandler}
           onNewImageDebounceTime={300}
           viewportOverlayComponent={warningsOverlay}
+          stackPrefetch={this.props.stackPrefetch}
+          isStackPrefetchEnabled={this.props.isStackPrefetchEnabled}
           // ~~ Connected (From REDUX)
           // frameRate={frameRate}
           // isPlaying={false}
-          // isStackPrefetchEnabled={true}
           // onElementEnabled={() => {}}
           // setViewportActive{() => {}}
           {...this.props.customProps}

extensions/cornerstone/src/index.js

@@ -36,7 +36,7 @@ export default {
   preRegistration({ servicesManager, configuration = {} }) {
     init({ servicesManager, configuration });
   },
-  getViewportModule({ commandsManager }) {
+  getViewportModule({ commandsManager, appConfig }) {
     const ExtendedOHIFCornerstoneViewport = props => {
       /**
        * TODO: This appears to be used to set the redux parameters for
@@ -48,8 +48,17 @@ export default {
         jumpData.refreshViewports = false;
         commandsManager.runCommand('jumpToImage', jumpData);
       };
+
+      const { studyPrefetcher } = appConfig;
+      const isStackPrefetchEnabled =
+        studyPrefetcher && !studyPrefetcher.enabled;
+
       return (
-        <OHIFCornerstoneViewport {...props} onNewImage={onNewImageHandler} />
+        <OHIFCornerstoneViewport
+          {...props}
+          onNewImage={onNewImageHandler}
+          isStackPrefetchEnabled={isStackPrefetchEnabled}
+        />
       );
     };
 

extensions/cornerstone/src/init.js

@@ -37,7 +37,14 @@ export default function init({ servicesManager, configuration }) {
     }
   };
 
-  const { csToolsConfig } = configuration;
+  const {
+    csToolsConfig,
+    stackPrefetch = {
+      maxImagesToPrefetch: Infinity,
+      preserveExistingPool: false,
+      maxSimultaneousRequests: 20,
+    },
+  } = configuration;
   const metadataProvider = OHIF.cornerstone.metadataProvider;
 
   cornerstone.metaData.addProvider(
@@ -52,7 +59,7 @@ export default function init({ servicesManager, configuration }) {
     autoResizeViewports: false,
   };
 
-  initCornerstoneTools(defaultCsToolsConfig);
+  initCornerstoneTools({ ...defaultCsToolsConfig, ...stackPrefetch });
 
   const toolsGroupedByType = {
     touch: [csTools.PanMultiTouchTool, csTools.ZoomTouchPinchTool],

extensions/cornerstone/src/initCornerstoneTools.js

@@ -37,8 +37,8 @@ export default function(configuration = {}) {
 
   // Configure stack prefetch
   cornerstoneTools.stackPrefetch.setConfiguration({
-    maxImagesToPrefetch: Infinity,
-    preserveExistingPool: false,
-    maxSimultaneousRequests: 20,
+    maxImagesToPrefetch: configuration.maxImagesToPrefetch,
+    preserveExistingPool: configuration.preserveExistingPool,
+    maxSimultaneousRequests: configuration.maxSimultaneousRequests,
   });
 }

extensions/dicom-rt/CHANGELOG.md

@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [0.6.14](https://github.com/OHIF/Viewers/compare/@ohif/extension-dicom-rt@0.6.13...@ohif/extension-dicom-rt@0.6.14) (2021-09-03)
+
+**Note:** Version bump only for package @ohif/extension-dicom-rt
+
+
+
+
+
 ## [0.6.13](https://github.com/OHIF/Viewers/compare/@ohif/extension-dicom-rt@0.6.12...@ohif/extension-dicom-rt@0.6.13) (2021-06-02)
 
 

extensions/dicom-rt/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-dicom-rt",
-  "version": "0.6.13",
+  "version": "0.6.14",
   "description": "OHIF extension for rendering DICOM RTSTRUCTs on top of cornerstone images.",
   "author": "OHIF",
   "license": "MIT",

extensions/dicom-rt/src/index.js

@@ -1,11 +1,12 @@
 import React from 'react';
+import { utils } from '@ohif/core';
+
 import init from './init.js';
 import sopClassHandlerModule from './OHIFDicomRTStructSopClassHandler';
 import id from './id.js';
 import RTPanel from './components/RTPanel/RTPanel';
 import { version } from '../package.json';
 
-import { utils } from '@ohif/core';
 const { studyMetadataManager } = utils;
 
 export default {
@@ -42,12 +43,48 @@ export default {
       );
     };
 
+    const RTPanelTabChangedEvent = 'rt-panel-tab-updated';
+
+    /**
+     * Trigger's an event to update the state of the panel's RoundedButtonGroup.
+     *
+     * This is required to avoid extension state
+     * coupling with the viewer's ToolbarRow component.
+     *
+     * @param {object} data
+     */
+    const triggerRTPanelUpdatedEvent = data => {
+      const event = new CustomEvent(RTPanelTabChangedEvent, {
+        detail: data,
+      });
+      document.dispatchEvent(event);
+    };
+
+    const onRTStructsLoaded = ({ detail }) => {
+      const { rtStructDisplaySet, referencedDisplaySet } = detail;
+
+      const studyMetadata = studyMetadataManager.get(
+        rtStructDisplaySet.StudyInstanceUID
+      );
+      const referencedDisplaysets = studyMetadata.getDerivedDatasets({
+        referencedSeriesInstanceUID: referencedDisplaySet.SeriesInstanceUID,
+        Modality: 'RTSTRUCT',
+      });
+      triggerRTPanelUpdatedEvent({
+        badgeNumber: referencedDisplaysets.length,
+        target: 'rt-panel',
+      });
+    };
+
+    document.addEventListener('extensiondicomrtrtloaded', onRTStructsLoaded);
+
     return {
       menuOptions: [
         {
           icon: 'list',
           label: 'RTSTRUCT',
           target: 'rt-panel',
+          stateEvent: RTPanelTabChangedEvent,
           isDisabled: (studies, activeViewport) => {
             if (!studies) {
               return true;

extensions/dicom-rt/src/loadRTStruct.js

@@ -90,11 +90,11 @@ export default async function loadRTStruct(
       const sopInstanceUID = ContourImageSequence
         ? ContourImageSequence.ReferencedSOPInstanceUID
         : _getClosestSOPInstanceUID(
-          ContourData,
-          ContourGeometricType,
-          NumberOfContourPoints,
-          imageIdSopInstanceUidPairs
-        );
+            ContourData,
+            ContourGeometricType,
+            NumberOfContourPoints,
+            imageIdSopInstanceUidPairs
+          );
       const imageId = _getImageId(imageIdSopInstanceUidPairs, sopInstanceUID);
 
       if (!imageId) {
@@ -171,7 +171,13 @@ export default async function loadRTStruct(
    * allows us to easily watch the module or the rtstruct loading process in any other component
    * without subscribing to external events.
    */
-  const event = new CustomEvent('extensiondicomrtrtloaded');
+  const event = new CustomEvent('extensiondicomrtrtloaded', {
+    detail: {
+      rtStructDisplaySet,
+      referencedDisplaySet,
+      studies,
+    },
+  });
   document.dispatchEvent(event);
 }
 
@@ -299,7 +305,9 @@ const _getImageId = (imageIdSopInstanceUidPairs, sopInstanceUID) => {
       imageIdSopInstanceUidPairsEntry.sopInstanceUID === sopInstanceUID
   );
 
-  return imageIdSopInstanceUidPairsEntry ? imageIdSopInstanceUidPairsEntry.imageId : null;
+  return imageIdSopInstanceUidPairsEntry
+    ? imageIdSopInstanceUidPairsEntry.imageId
+    : null;
 };
 
 function _getImageIdSopInstanceUidPairsForDisplaySet(

extensions/dicom-segmentation/CHANGELOG.md

@@ -3,6 +3,14 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [0.6.11](https://github.com/OHIF/Viewers/compare/@ohif/extension-dicom-segmentation@0.6.10...@ohif/extension-dicom-segmentation@0.6.11) (2021-09-03)
+
+**Note:** Version bump only for package @ohif/extension-dicom-segmentation
+
+
+
+
+
 ## [0.6.10](https://github.com/OHIF/Viewers/compare/@ohif/extension-dicom-segmentation@0.6.9...@ohif/extension-dicom-segmentation@0.6.10) (2021-06-02)
 
 

extensions/dicom-segmentation/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-dicom-segmentation",
-  "version": "0.6.10",
+  "version": "0.6.11",
   "description": "OHIF extension for viewing segmentations in the 2D MPR view",
   "author": "OHIF",
   "license": "MIT",

extensions/dicom-segmentation/src/components/SegmentationPanel/SegmentationPanel.js

@@ -224,16 +224,20 @@ const SegmentationPanel = ({
         )
       );
     };
-  }, [activeIndex, viewports]);
+  }, [
+    activeIndex,
+    updateSegmentationComboBox,
+    viewports,
+  ]);
 
-  const updateSegmentationComboBox = (e) => {
+  const updateSegmentationComboBox = e => {
     const index = e.detail.activatedLabelmapIndex;
     if (index !== -1) {
       setState(state => ({ ...state, selectedSegmentation: index }));
     } else {
       cleanSegmentationComboBox();
     }
-  }
+  };
 
   const cleanSegmentationComboBox = () => {
     setState(state => ({
@@ -245,7 +249,7 @@ const SegmentationPanel = ({
       isDisabled: true,
       selectedSegmentation: -1,
     }));
-  }
+  };
 
   const refreshSegmentations = () => {
     const activeViewport = getActiveViewport();
@@ -309,7 +313,8 @@ const SegmentationPanel = ({
     );
 
     const filteredReferencedSegDisplaysets = referencedSegDisplaysets.filter(
-      (segDisplay => segDisplay.loadError !== true));
+      segDisplay => segDisplay.loadError !== true
+    );
 
     return filteredReferencedSegDisplaysets.map((displaySet, index) => {
       const {

extensions/dicom-segmentation/src/index.js

@@ -1,9 +1,12 @@
 import React from 'react';
+import OHIF from '@ohif/core';
+
 import init from './init.js';
 import toolbarModule from './toolbarModule.js';
 import getSopClassHandlerModule from './getOHIFDicomSegSopClassHandler.js';
 import SegmentationPanel from './components/SegmentationPanel/SegmentationPanel.js';
 import { version } from '../package.json';
+const { studyMetadataManager } = OHIF.utils;
 
 export default {
   /**
@@ -79,12 +82,50 @@ export default {
       );
     };
 
+    const SegmentationPanelTabUpdatedEvent = 'segmentation-panel-tab-updated';
+
+    /**
+     * Trigger's an event to update the state of the panel's RoundedButtonGroup.
+     *
+     * This is required to avoid extension state
+     * coupling with the viewer's ToolbarRow component.
+     *
+     * @param {object} data
+     */
+    const triggerSegmentationPanelTabUpdatedEvent = data => {
+      const event = new CustomEvent(SegmentationPanelTabUpdatedEvent, {
+        detail: data,
+      });
+      document.dispatchEvent(event);
+    };
+
+    const onSegmentationsLoaded = ({ detail }) => {
+      const { segDisplaySet, segMetadata } = detail;
+      const studyMetadata = studyMetadataManager.get(
+        segDisplaySet.StudyInstanceUID
+      );
+      const referencedDisplaysets = studyMetadata.getDerivedDatasets({
+        referencedSeriesInstanceUID: segMetadata.seriesInstanceUid,
+        Modality: 'SEG',
+      });
+      triggerSegmentationPanelTabUpdatedEvent({
+        badgeNumber: referencedDisplaysets.length,
+        target: 'segmentation-panel',
+      });
+    };
+
+    document.addEventListener(
+      'extensiondicomsegmentationsegloaded',
+      onSegmentationsLoaded
+    );
+
     return {
       menuOptions: [
         {
           icon: 'list',
           label: 'Segmentations',
           target: 'segmentation-panel',
+          stateEvent: SegmentationPanelTabUpdatedEvent,
           isDisabled: studies => {
             if (!studies) {
               return true;

extensions/dicom-segmentation/src/loadSegmentation.js

@@ -59,7 +59,16 @@ export default async function loadSegmentation(
    * without subscribing to external events.
    */
   console.log('Segmentation loaded.');
-  const event = new CustomEvent('extensiondicomsegmentationsegloaded');
+  const event = new CustomEvent('extensiondicomsegmentationsegloaded', {
+    detail: {
+      imageIds,
+      segDisplaySet,
+      labelmapBuffer,
+      segMetadata,
+      segmentsOnFrame,
+      labelmapSegments,
+    },
+  });
   document.dispatchEvent(event);
 
   return labelmapIndex;

extensions/vtk/CHANGELOG.md

@@ -3,6 +3,33 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+## [1.11.17](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.11.16...@ohif/extension-vtk@1.11.17) (2021-09-09)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.11.16](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.11.15...@ohif/extension-vtk@1.11.16) (2021-09-03)
+
+**Note:** Version bump only for package @ohif/extension-vtk
+
+
+
+
+
+## [1.11.15](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.11.14...@ohif/extension-vtk@1.11.15) (2021-08-30)
+
+
+### Bug Fixes
+
+* MPR metadata parsing for spacings ([#2517](https://github.com/OHIF/Viewers/issues/2517)) ([715dfc5](https://github.com/OHIF/Viewers/commit/715dfc556a3883de31d74012dcc99e431d91f57d))
+
+
+
+
+
 ## [1.11.14](https://github.com/OHIF/Viewers/compare/@ohif/extension-vtk@1.11.13...@ohif/extension-vtk@1.11.14) (2021-06-03)
 
 **Note:** Version bump only for package @ohif/extension-vtk

extensions/vtk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/extension-vtk",
-  "version": "1.11.14",
+  "version": "1.11.17",
   "description": "OHIF extension for VTK.js",
   "author": "OHIF",
   "license": "MIT",
@@ -53,8 +53,8 @@
     "react-vtkjs-viewport": "^0.14.2"
   },
   "devDependencies": {
-    "@ohif/core": "^2.13.13",
-    "@ohif/ui": "^1.9.2",
+    "@ohif/core": "^2.14.0",
+    "@ohif/ui": "^1.10.0",
     "cornerstone-tools": "^4.20.1",
     "cornerstone-wado-image-loader": "^3.1.0",
     "dicom-parser": "^1.8.3",

extensions/vtk/src/OHIFVTKViewport.js

@@ -72,7 +72,7 @@ class OHIFVTKViewport extends Component {
   };
 
   static defaultProps = {
-    onScroll: () => {},
+    onScroll: () => { },
   };
 
   static id = 'OHIFVTKViewport';
@@ -271,7 +271,7 @@ class OHIFVTKViewport extends Component {
 
     volumeMapper.setSampleDistance(sampleDistance);
 
-    // Be generous to surpress warnings, as the logging really hurts performance.
+    // Be generous to suppress warnings, as the logging really hurts performance.
     // TODO: maybe we should auto adjust samples to 1000.
     volumeMapper.setMaximumSamplesPerRay(4000);
 
@@ -398,7 +398,7 @@ class OHIFVTKViewport extends Component {
 
     if (
       displaySet.displaySetInstanceUID !==
-        prevDisplaySet.displaySetInstanceUID ||
+      prevDisplaySet.displaySetInstanceUID ||
       displaySet.SOPInstanceUID !== prevDisplaySet.SOPInstanceUID ||
       displaySet.frameIndex !== prevDisplaySet.frameIndex
     ) {

platform/core/CHANGELOG.md

@@ -3,6 +3,36 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [2.14.0](https://github.com/OHIF/Viewers/compare/@ohif/core@2.13.15...@ohif/core@2.14.0) (2021-09-09)
+
+
+### Features
+
+* OHIF-1000: Study prefetcher ([#2466](https://github.com/OHIF/Viewers/issues/2466)) ([8f26045](https://github.com/OHIF/Viewers/commit/8f2604509d24092b721f1333289d838820d68cac))
+
+
+
+
+
+## [2.13.15](https://github.com/OHIF/Viewers/compare/@ohif/core@2.13.14...@ohif/core@2.13.15) (2021-09-03)
+
+**Note:** Version bump only for package @ohif/core
+
+
+
+
+
+## [2.13.14](https://github.com/OHIF/Viewers/compare/@ohif/core@2.13.13...@ohif/core@2.13.14) (2021-08-30)
+
+
+### Bug Fixes
+
+* MPR metadata parsing for spacings ([#2517](https://github.com/OHIF/Viewers/issues/2517)) ([715dfc5](https://github.com/OHIF/Viewers/commit/715dfc556a3883de31d74012dcc99e431d91f57d))
+
+
+
+
+
 ## [2.13.13](https://github.com/OHIF/Viewers/compare/@ohif/core@2.13.12...@ohif/core@2.13.13) (2021-06-03)
 
 **Note:** Version bump only for package @ohif/core

platform/core/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/core",
-  "version": "2.13.13",
+  "version": "2.14.0",
   "description": "Generic business logic for web-based medical imaging applications",
   "author": "OHIF Core Team",
   "license": "MIT",

platform/core/src/classes/MetadataProvider.js

@@ -231,26 +231,26 @@ class MetadataProvider {
         let columnCosines;
 
         if (PixelSpacing) {
-          rowPixelSpacing = PixelSpacing[0];
-          columnPixelSpacing = PixelSpacing[1];
+          rowPixelSpacing = validNumber(PixelSpacing[0]);
+          columnPixelSpacing = validNumber(PixelSpacing[1]);
         }
 
         if (ImageOrientationPatient) {
-          rowCosines = ImageOrientationPatient.slice(0, 3);
-          columnCosines = ImageOrientationPatient.slice(3, 6);
+          rowCosines = validNumber(ImageOrientationPatient.slice(0, 3));
+          columnCosines = validNumber(ImageOrientationPatient.slice(3, 6));
         }
 
         metadata = {
           frameOfReferenceUID: instance.FrameOfReferenceUID,
           rows: instance.Rows,
           columns: instance.Columns,
-          imageOrientationPatient: ImageOrientationPatient,
+          imageOrientationPatient: validNumber(ImageOrientationPatient),
           rowCosines,
           columnCosines,
-          imagePositionPatient: instance.ImagePositionPatient,
-          sliceThickness: instance.SliceThickness,
-          sliceLocation: instance.SliceLocation,
-          pixelSpacing: PixelSpacing,
+          imagePositionPatient: validNumber(instance.ImagePositionPatient),
+          sliceThickness: validNumber(instance.SliceThickness),
+          sliceLocation: validNumber(instance.SliceLocation),
+          pixelSpacing: validNumber(PixelSpacing),
           rowPixelSpacing,
           columnPixelSpacing,
         };

platform/core/src/classes/StudyLoadingListener.js

@@ -1,16 +1,14 @@
 import cornerstone from 'cornerstone-core';
 import cornerstoneWADOImageLoader from 'cornerstone-wado-image-loader';
-import {
-  clearStudyLoadingProgress,
-  setStudyLoadingProgress,
-} from '../redux/actions';
+import debounce from 'lodash.debounce';
+
 import StackManager from '../utils/StackManager';
+import { StudyPrefetcher } from './StudyPrefetcher';
 
 class BaseLoadingListener {
   constructor(stack, options = {}) {
     this.id = BaseLoadingListener.getNewId();
     this.stack = stack;
-    this.startListening();
     this.statsItemsLimit = options.statsItemsLimit || 2;
     this.stats = {
       items: [],
@@ -60,6 +58,9 @@ class BaseLoadingListener {
   }
 
   _getProgressId() {
+    /**
+     * TODO: The id key should be configurable.
+     */
     const displaySetInstanceUID = this.stack.displaySetInstanceUID;
     return 'StackProgress:' + displaySetInstanceUID;
   }
@@ -96,11 +97,18 @@ class BaseLoadingListener {
 class DICOMFileLoadingListener extends BaseLoadingListener {
   constructor(stack, options) {
     super(stack, options);
+
+    this.imageLoadProgressEventHandler = this._imageLoadProgressEventHandle.bind(
+      this
+    );
+
     this._dataSetUrl = this._getDataSetUrl(stack);
     this._lastLoaded = 0;
 
     // Check how many instances has already been download (cached)
     this._checkCachedData();
+
+    this.startListening();
   }
 
   _checkCachedData() {
@@ -127,10 +135,6 @@ class DICOMFileLoadingListener extends BaseLoadingListener {
   startListening() {
     const imageLoadProgressEventName = this._getImageLoadProgressEventName();
 
-    this.imageLoadProgressEventHandler = this._imageLoadProgressEventHandle.bind(
-      this
-    );
-
     this.stopListening();
 
     cornerstone.events.addEventListener(
@@ -200,17 +204,57 @@ class DICOMFileLoadingListener extends BaseLoadingListener {
   }
 }
 
+const StudyLoadingListenerEvents = {
+  OnProgress: 'StudyLoadingListenerEvents.OnProgress',
+};
+
+function promiseState(promise, callback) {
+  // Symbols and RegExps are never content-equal
+  var uniqueValue = window['Symbol'] ? Symbol('unique') : /unique/;
+
+  function notifyPendingOrResolved(value) {
+    if (value === uniqueValue) {
+      return callback('pending');
+    } else {
+      return callback('fulfilled');
+    }
+  }
+
+  function notifyRejected(reason) {
+    return callback('rejected');
+  }
+
+  var race = [promise, Promise.resolve(uniqueValue)];
+  Promise.race(race).then(notifyPendingOrResolved, notifyRejected);
+}
+
 class StackLoadingListener extends BaseLoadingListener {
   constructor(stack, options = {}) {
     options.statsItemsLimit = 20;
+
     super(stack, options);
 
+    this.imageLoadedEventHandler = this._imageLoadedEventHandler.bind(this);
+    this.imageCachePromiseRemovedEventHandler = this._imageCachePromiseRemovedEventHandler.bind(
+      this
+    );
+
     this.imageDataMap = this._convertImageIdsArrayToMap(stack.imageIds);
     this.framesStatus = this._createArray(stack.imageIds.length, false);
     this.loadedCount = 0;
 
     // Check how many instances has already been download (cached)
-    this._checkCachedData();
+    this._debouncedSetProgressData = debounce((...args) => {
+      this._setProgressData(...args);
+
+      /** After checking cache, continue prefetch */
+      const studyPrefetcher = StudyPrefetcher.getInstance();
+      studyPrefetcher.prefetch(studyPrefetcher.getElement());
+    }, 300);
+    const debounced = true;
+    this._checkCachedData(debounced);
+
+    this.startListening();
   }
 
   _convertImageIdsArrayToMap(imageIds) {
@@ -238,18 +282,37 @@ class StackLoadingListener extends BaseLoadingListener {
     return array;
   }
 
-  _checkCachedData() {
-    // const imageIds = this.stack.imageIds;
-    // TODO: No way to check status of Promise.
-    /*for(let i = 0; i < imageIds.length; i++) {
-            const imageId = imageIds[i];
+  /**
+   * Check if image id is cached in cornerstone.
+   *
+   * @param {string} imageId
+   * @returns
+   */
+  isImageCached(imageId) {
+    const image = cornerstone.imageCache.imageCache[imageId];
+    return image && image.sizeInBytes;
+  }
 
-            const imagePromise = cornerstone.imageCache.getImageLoadObject(imageId).promise;
+  _checkCachedData(debounced = false) {
+    const imageIds = this.stack.imageIds;
 
-            if (imagePromise && (imagePromise.state() === 'resolved')) {
-                this._updateFrameStatus(imageId, true);
-            }
-        }*/
+    for (let i = 0; i < imageIds.length; i++) {
+      const imageId = imageIds[i];
+
+      const imageObject = cornerstone.imageCache.getImageLoadObject(imageId);
+
+      if (this.isImageCached(imageId)) {
+        this._updateFrameStatus(imageId, true, debounced);
+      }
+
+      if (imageObject && imageObject.promise) {
+        promiseState(imageObject.promise, state => {
+          if (state === 'fulfilled') {
+            this._updateFrameStatus(imageId, true, debounced);
+          }
+        });
+      }
+    }
   }
 
   _getImageLoadedEventName() {
@@ -272,11 +335,6 @@ class StackLoadingListener extends BaseLoadingListener {
     const imageLoadedEventName = this._getImageLoadedEventName();
     const imageCachePromiseRemovedEventName = this._getImageCachePromiseRemoveEventName();
 
-    this.imageLoadedEventHandler = this._imageLoadedEventHandler.bind(this);
-    this.imageCachePromiseRemovedEventHandler = this._imageCachePromiseRemovedEventHandler.bind(
-      this
-    );
-
     this.stopListening();
 
     cornerstone.events.addEventListener(
@@ -303,7 +361,7 @@ class StackLoadingListener extends BaseLoadingListener {
     );
   }
 
-  _updateFrameStatus(imageId, loaded) {
+  _updateFrameStatus(imageId, loaded, debounced) {
     const imageData = this.imageDataMap.get(imageId);
 
     if (!imageData || imageData.loaded === loaded) {
@@ -318,7 +376,7 @@ class StackLoadingListener extends BaseLoadingListener {
     imageData.loaded = loaded;
     this.framesStatus[imageData.index] = loaded;
     this.loadedCount += loaded ? 1 : -1;
-    this._updateProgress();
+    this._updateProgress(debounced);
   }
 
   _setProgressData(progressId, progressData) {
@@ -339,7 +397,7 @@ class StackLoadingListener extends BaseLoadingListener {
     );
   }
 
-  _updateProgress() {
+  _updateProgress(debounced) {
     const totalFramesCount = this.stack.imageIds.length;
     const loadedFramesCount = this.loadedCount;
     const loadingFramesCount = totalFramesCount - loadedFramesCount;
@@ -357,6 +415,11 @@ class StackLoadingListener extends BaseLoadingListener {
       framesStatus: this.framesStatus,
     };
 
+    if (debounced) {
+      this._debouncedSetProgressData(progressId, progressData);
+      return;
+    }
+
     this._setProgressData(progressId, progressData);
   }
 
@@ -371,11 +434,13 @@ class StackLoadingListener extends BaseLoadingListener {
     }
 
     progressBar += ']';
-    log.info(`${displaySetInstanceUID}: ${progressBar}`);
+    console.info(`${displaySetInstanceUID}: ${progressBar}`);
   }
 }
 
 class StudyLoadingListener {
+  static events = StudyLoadingListenerEvents;
+
   constructor(options) {
     this.listeners = {};
     this.options = options;
@@ -454,14 +519,36 @@ class StudyLoadingListener {
 
   _getSchema(stack) {
     const imageId = stack.imageIds[0];
+    if (!imageId) {
+      return;
+    }
     const colonIndex = imageId.indexOf(':');
     return imageId.substring(0, colonIndex);
   }
 
-  // Singleton
   static getInstance(options) {
+    /**
+     * TODO: Use a different alternative without the use of events.
+     */
+    const DEFAULT_OPTIONS = {
+      _setProgressData: (progressId, progressData) => {
+        const event = new CustomEvent(StudyLoadingListenerEvents.OnProgress, {
+          detail: { progressId, progressData },
+        });
+        document.dispatchEvent(event);
+      },
+      _clearProgressById: progressId => {
+        const event = new CustomEvent(StudyLoadingListenerEvents.OnProgress, {
+          detail: { progressId, percentComplete: 0 },
+        });
+        document.dispatchEvent(event);
+      },
+    };
+
     if (!StudyLoadingListener._instance) {
-      StudyLoadingListener._instance = new StudyLoadingListener(options);
+      StudyLoadingListener._instance = new StudyLoadingListener(
+        options || DEFAULT_OPTIONS
+      );
     }
 
     return StudyLoadingListener._instance;

platform/core/src/classes/StudyPrefetcher.js

@@ -1,14 +1,28 @@
-import log from '../log.js';
-import OHIFError from './OHIFError';
 import cornerstone from 'cornerstone-core';
 import cornerstoneTools from 'cornerstone-tools';
+
 import getImageId from '../utils/getImageId.js';
 
+const noop = () => {};
+
 export class StudyPrefetcher {
-  constructor(studies) {
+  options = {
+    order: 'closest',
+    displaySetCount: 1,
+    onImageCached: noop,
+    requestType: 'prefetch',
+    preventCache: false,
+    prefetchDisplaySetsTimeout: 300,
+    includeActiveDisplaySet: false,
+  };
+
+  constructor(studies, options) {
     this.studies = studies || [];
-    this.prefetchDisplaySetsTimeout = 300;
-    this.lastActiveViewportElement = null;
+
+    if (options) {
+      this.options = { ...this.options, ...options };
+      this.options.requestType = 'prefetch';
+    }
 
     cornerstone.events.addEventListener(
       'cornerstoneimagecachefull.StudyPrefetcher',
@@ -16,6 +30,9 @@ export class StudyPrefetcher {
     );
   }
 
+  /**
+   * Remove previously set event listeners and stop prefetching.
+   */
   destroy() {
     this.stopPrefetching();
     cornerstone.events.removeEventListener(
@@ -24,68 +41,117 @@ export class StudyPrefetcher {
     );
   }
 
-  static getInstance() {
+  /**
+   * Get StudyPrefetcher singleton instance.
+   *
+   * @param {array} studies
+   * @param {object} options
+   * @returns
+   */
+  static getInstance(studies = [], options) {
     if (!StudyPrefetcher.instance) {
-      StudyPrefetcher.instance = new StudyPrefetcher([]);
+      StudyPrefetcher.instance = new StudyPrefetcher(studies, options);
+    }
+
+    if (options) {
+      this.options = { ...this.options, ...options };
+      this.options.requestType = 'prefetch';
     }
 
     return StudyPrefetcher.instance;
   }
 
+  /**
+   * OHIF study metadata instances.
+   *
+   * @param {array} studies
+   */
   setStudies(studies) {
     this.stopPrefetching();
     this.studies = studies;
   }
 
-  prefetch() {
+  /**
+   * Get previously prefetched element.
+   *
+   * @returns {HTMLElement} Previously prefetched element.
+   */
+  getElement() {
+    return this.element;
+  }
+
+  /**
+   * Prefetch related display sets based on cornerstone viewport element
+   * with previously set options.
+   *
+   * @param {*} element
+   * @param {string} displaySetInstanceUID the display set instance uid
+   * @returns
+   */
+  prefetch(element, displaySetInstanceUID) {
     if (!this.studies || !this.studies.length) {
       return;
     }
 
+    this.element = element;
+    this.enabledElement = cornerstone.getEnabledElement(element);
+
     this.stopPrefetching();
-    this.prefetchDisplaySets();
+    this.prefetchDisplaySets(displaySetInstanceUID);
   }
 
+  /**
+   * Stop prefetching images.
+   */
   stopPrefetching() {
     cornerstoneTools.requestPoolManager.clearRequestStack('prefetch');
   }
 
-  prefetchDisplaySetsAsync(timeout) {
-    timeout = timeout || this.prefetchDisplaySetsTimeout;
-
+  /**
+   * Prefetch display sets async.
+   *
+   * @param {HTMLElement} element cornerstone viewport element
+   * @param {number} timeout
+   */
+  prefetchDisplaySetsAsync(element, timeout) {
+    this.enabledElement = cornerstone.getEnabledElement(element);
+    timeout = timeout || this.options.prefetchDisplaySetsTimeout;
     clearTimeout(this.prefetchDisplaySetsHandler);
     this.prefetchDisplaySetsHandler = setTimeout(() => {
-      this.prefetchDisplaySets();
+      this.prefetchDisplaySets(element);
     }, timeout);
   }
 
-  prefetchDisplaySets() {
-    // TODO: Allow passing in config
-    let config = {
-      order: 'closest',
-      displaySetCount: 1,
-    };
-
-    const displaySetsToPrefetch = this.getDisplaySetsToPrefetch(config);
+  /**
+   * Extract all image ids from all display sets to be fetched and
+   * call method to add images to request pool manager.
+   *
+   * @param {string} displaySetInstanceUID the display set instance uid
+   */
+  prefetchDisplaySets(displaySetInstanceUID) {
+    const displaySetsToPrefetch = this.getDisplaySetsToPrefetch(
+      displaySetInstanceUID
+    );
     const imageIds = this.getImageIdsFromDisplaySets(displaySetsToPrefetch);
-
     this.prefetchImageIds(imageIds);
   }
 
+  /**
+   * Add image ids to request pool manager.
+   *
+   * @param {array} imageIds
+   */
   prefetchImageIds(imageIds) {
     const nonCachedImageIds = this.filterCachedImageIds(imageIds);
     const requestPoolManager = cornerstoneTools.requestPoolManager;
-    const requestType = 'prefetch';
-    const preventCache = false;
-    const noop = () => {};
 
     nonCachedImageIds.forEach(imageId => {
       requestPoolManager.addRequest(
         {},
         imageId,
-        requestType,
-        preventCache,
-        noop,
+        this.options.requestType,
+        this.options.preventCache,
+        () => {},
         noop
       );
     });
@@ -93,26 +159,45 @@ export class StudyPrefetcher {
     requestPoolManager.startGrabbing();
   }
 
+  /**
+   * Get study by cornerstone image instance.
+   *
+   * @param {object} image
+   * @returns
+   */
   getStudy(image) {
     const StudyInstanceUID = cornerstone.metaData.get(
       'StudyInstanceUID',
       image.imageId
     );
-    return OHIF.viewer.Studies.find(
-      study => study.StudyInstanceUID === StudyInstanceUID
+    const studies = this.studies;
+    return studies.find(
+      study => study.getData().StudyInstanceUID === StudyInstanceUID
     );
   }
 
+  /**
+   * Get study series by cornerstone image instance.
+   *
+   * @param {object} study OHIF study instance
+   * @param {object} image cornerstone image instance object
+   * @returns
+   */
   getSeries(study, image) {
     const SeriesInstanceUID = cornerstone.metaData.get(
       'SeriesInstanceUID',
       image.imageId
     );
-    const studyMetadata = OHIF.viewerbase.getStudyMetadata(study);
-
-    return studyMetadata.getSeriesByUID(SeriesInstanceUID);
+    return study.getSeriesByUID(SeriesInstanceUID);
   }
 
+  /**
+   * Get sop instance by cornerstone image instance.
+   *
+   * @param {array} series
+   * @param {object} image
+   * @returns
+   */
   getInstance(series, image) {
     const instanceMetadata = cornerstone.metaData.get(
       'instance',
@@ -121,7 +206,33 @@ export class StudyPrefetcher {
     return series.getInstanceByUID(instanceMetadata.SOPInstanceUID);
   }
 
-  getActiveDisplaySet(displaySets, instance) {
+  /**
+   * Returns the display set with given uid.
+   *
+   * @param {string} displaySetInstanceUID the display set instance uid
+   * @returns {object} displaySet
+   */
+  getDisplaySetByUID(displaySetInstanceUID) {
+    let displaySet;
+    this.studies.forEach(study => {
+      const ds = study.displaySets.find(
+        ds => ds.displaySetInstanceUID === displaySetInstanceUID
+      );
+      if (ds) {
+        displaySet = ds;
+      }
+    });
+    return displaySet;
+  }
+
+  /**
+   * Get display set by SOPInstanceUID.
+   *
+   * @param {array} displaySets
+   * @param {object} instance
+   * @returns
+   */
+  getDisplaySetBySOPInstanceUID(displaySets, instance) {
     return displaySets.find(displaySet => {
       return displaySet.images.some(displaySetImage => {
         return displaySetImage.SOPInstanceUID === instance.SOPInstanceUID;
@@ -129,25 +240,48 @@ export class StudyPrefetcher {
     });
   }
 
-  getDisplaySetsToPrefetch(config) {
+  /**
+   * Get active viewport image based on cornerstone viewport element.
+   * @returns
+   */
+  getActiveViewportImage() {
+    if (!this.enabledElement) {
+      return;
+    }
+
+    return this.enabledElement.image;
+  }
+
+  /**
+   * Prefetch display sets based on cornerstone viewport element image.
+   *
+   * @param {string} displaySetInstanceUID the display set instance uid
+   * @returns {array} displaySets
+   */
+  getDisplaySetsToPrefetch(displaySetInstanceUID) {
     const image = this.getActiveViewportImage();
 
-    if (!image || !config || !config.displaySetCount) {
+    if (!image) {
       return [];
     }
 
-    /*const study = this.getStudy(image);
+    const study = this.getStudy(image);
     const series = this.getSeries(study, image);
-    const instance = this.getInstance(series, image);*/
+    const instance = this.getInstance(series, image);
     const displaySets = study.displaySets;
-    const activeDisplaySet = null; //this.getActiveDisplaySet(displaySets, instance);
+    const activeDisplaySet = displaySetInstanceUID
+      ? this.getDisplaySetByUID(displaySetInstanceUID)
+      : this.getDisplaySetBySOPInstanceUID(displaySets, instance);
+
     const prefetchMethodMap = {
       topdown: 'getFirstDisplaySets',
       downward: 'getNextDisplaySets',
+      upward: 'getPreviousDisplaySets',
       closest: 'getClosestDisplaySets',
+      all: 'getAllDisplaySets',
     };
 
-    const prefetchOrder = config.order;
+    const prefetchOrder = this.options.order;
     const methodName = prefetchMethodMap[prefetchOrder];
     const getDisplaySets = this[methodName];
 
@@ -163,18 +297,59 @@ export class StudyPrefetcher {
       this,
       displaySets,
       activeDisplaySet,
-      config.displaySetCount
+      this.options.displaySetCount,
+      this.options.includeActiveDisplaySet
     );
   }
 
-  getFirstDisplaySets(displaySets, activeDisplaySet, displaySetCount) {
+  /**
+   * Get all display sets.
+   *
+   * @param {array} displaySets
+   * @param {object} activeDisplaySet
+   * @param {number} displaySetCount
+   * @param {boolean} includeActiveDisplaySet
+   * @returns
+   */
+  getAllDisplaySets(
+    displaySets,
+    activeDisplaySet,
+    displaySetCount,
+    includeActiveDisplaySet
+  ) {
+    const length = displaySets.length;
+    const selectedDisplaySets = [];
+
+    for (let i = 0; i < length; i++) {
+      const displaySet = displaySets[i];
+      selectedDisplaySets.push(displaySet);
+    }
+
+    return selectedDisplaySets;
+  }
+
+  /**
+   * Get all display sets in order after the active display set.
+   *
+   * @param {array} displaySets
+   * @param {object} activeDisplaySet
+   * @param {number} displaySetCount
+   * @param {boolean} includeActiveDisplaySet
+   * @returns
+   */
+  getFirstDisplaySets(
+    displaySets,
+    activeDisplaySet,
+    displaySetCount,
+    includeActiveDisplaySet
+  ) {
     const length = displaySets.length;
     const selectedDisplaySets = [];
 
     for (let i = 0; i < length && displaySetCount; i++) {
       const displaySet = displaySets[i];
 
-      if (displaySet !== activeDisplaySet) {
+      if (includeActiveDisplaySet || displaySet !== activeDisplaySet) {
         selectedDisplaySets.push(displaySet);
         displaySetCount--;
       }
@@ -183,21 +358,78 @@ export class StudyPrefetcher {
     return selectedDisplaySets;
   }
 
-  getNextDisplaySets(displaySets, activeDisplaySet, displaySetCount) {
+  /**
+   * Get all display sets before the active display set.
+   *
+   * @param {array} displaySets
+   * @param {object} activeDisplaySet
+   * @param {number} displaySetCount
+   * @param {boolean} includeActiveDisplaySet
+   * @returns
+   */
+  getPreviousDisplaySets(
+    displaySets,
+    activeDisplaySet,
+    displaySetCount,
+    includeActiveDisplaySet
+  ) {
     const activeDisplaySetIndex = displaySets.indexOf(activeDisplaySet);
-    const begin = activeDisplaySetIndex + 1;
-    const end = Math.min(begin + displaySetCount, displaySets.length);
+    const end = includeActiveDisplaySet
+      ? activeDisplaySetIndex + 1
+      : activeDisplaySetIndex;
+    const previousDisplaySets = displaySets.slice(0, end);
+    return previousDisplaySets.reverse().slice(0, displaySetCount);
+  }
 
+  /**
+   * Get all display sets after the active display set.
+   *
+   * @param {array} displaySets
+   * @param {object} activeDisplaySet
+   * @param {number} displaySetCount
+   * @param {boolean} includeActiveDisplaySet
+   * @returns
+   */
+  getNextDisplaySets(
+    displaySets,
+    activeDisplaySet,
+    displaySetCount,
+    includeActiveDisplaySet
+  ) {
+    const activeDisplaySetIndex = displaySets.indexOf(activeDisplaySet);
+    const begin = includeActiveDisplaySet
+      ? activeDisplaySetIndex
+      : activeDisplaySetIndex + 1;
+    const end = Math.min(begin + displaySetCount, displaySets.length);
     return displaySets.slice(begin, end);
   }
 
-  getClosestDisplaySets(displaySets, activeDisplaySet, displaySetCount) {
+  /**
+   * Get all display set closest to the active display set.
+   *
+   * @param {array} displaySets
+   * @param {object} activeDisplaySet
+   * @param {number} displaySetCount
+   * @param {boolean} includeActiveDisplaySet
+   * @returns
+   */
+  getClosestDisplaySets(
+    displaySets,
+    activeDisplaySet,
+    displaySetCount,
+    includeActiveDisplaySet
+  ) {
     const activeDisplaySetIndex = displaySets.indexOf(activeDisplaySet);
     const length = displaySets.length;
     const selectedDisplaySets = [];
     let left = activeDisplaySetIndex - 1;
     let right = activeDisplaySetIndex + 1;
 
+    if (includeActiveDisplaySet) {
+      selectedDisplaySets.push(displaySets[activeDisplaySetIndex]);
+      displaySetCount--;
+    }
+
     while ((left >= 0 || right < length) && displaySetCount) {
       if (left >= 0) {
         selectedDisplaySets.push(displaySets[left]);
@@ -215,6 +447,12 @@ export class StudyPrefetcher {
     return selectedDisplaySets;
   }
 
+  /**
+   * Get all image ids from display sets.
+   *
+   * @param {array} displaySets
+   * @returns {array} image ids
+   */
   getImageIdsFromDisplaySets(displaySets) {
     let imageIds = [];
 
@@ -225,9 +463,19 @@ export class StudyPrefetcher {
     return imageIds;
   }
 
+  /**
+   * Get all image ids from a given display set.
+   *
+   * @param {array} displaySet
+   * @returns
+   */
   getImageIdsFromDisplaySet(displaySet) {
     const imageIds = [];
 
+    if (!displaySet.images || displaySet.images.length < 1) {
+      return [];
+    }
+
     // TODO: This duplicates work done by the stack manager
     displaySet.images.forEach(image => {
       const numFrames = image.numFrames;
@@ -245,15 +493,30 @@ export class StudyPrefetcher {
     return imageIds;
   }
 
+  /**
+   * Filter cached image ids from a set of image ids.
+   *
+   * @param {array} imageIds
+   * @returns {array} images not cached
+   */
   filterCachedImageIds(imageIds) {
     return imageIds.filter(imageId => !this.isImageCached(imageId));
   }
 
+  /**
+   * Check if image id is cached in cornerstone.
+   *
+   * @param {string} imageId
+   * @returns
+   */
   isImageCached(imageId) {
     const image = cornerstone.imageCache.imageCache[imageId];
     return image && image.sizeInBytes;
   }
 
+  /**
+   * Warns that cache is full and stops prefetching.
+   */
   cacheFullHandler = () => {
     log.warn('Cache full');
     this.stopPrefetching();

platform/core/src/classes/metadata/StudyMetadata.js

@@ -497,6 +497,12 @@ class StudyMetadata extends Metadata {
       }
     }
 
+    if (this._displaySets.some(ds => 
+        ds.displaySetInstanceUID === displaySet.displaySetInstanceUID)
+    ) {
+      return;
+    }
+
     this._displaySets.splice(insertIndex, 0, displaySet);
     this.displaySets = this._displaySets;
   }

platform/core/src/redux/actions.js

@@ -78,17 +78,6 @@ export const setActiveViewportSpecificData = viewportSpecificData => ({
 /**
  * NOT-VIEWPORT
  */
-export const setStudyLoadingProgress = (progressId, progressData) => ({
-  type: 'SET_STUDY_LOADING_PROGRESS',
-  progressId,
-  progressData,
-});
-
-export const clearStudyLoadingProgress = progressId => ({
-  type: 'CLEAR_STUDY_LOADING_PROGRESS',
-  progressId,
-});
-
 export const setUserPreferences = state => ({
   type: SET_USER_PREFERENCES,
   state,
@@ -134,8 +123,6 @@ const actions = {
   /**
    * NOT-VIEWPORT
    */
-  setStudyLoadingProgress,
-  clearStudyLoadingProgress,
   setUserPreferences,
   setExtensionData,
   setTimepoints,

platform/core/src/redux/actions.test.js

@@ -11,8 +11,6 @@ describe('actions', () => {
       'setLayout',
       'clearViewportSpecificData',
       'setActiveViewportSpecificData',
-      'setStudyLoadingProgress',
-      'clearStudyLoadingProgress',
       'setUserPreferences',
       'setExtensionData',
       'setTimepoints',

platform/core/src/redux/reducers/index.js

@@ -1,5 +1,4 @@
 import extensions from './extensions';
-import loading from './loading';
 import preferences from './preferences';
 import servers from './servers';
 import studies from './studies';
@@ -8,7 +7,6 @@ import viewports from './viewports';
 
 const reducers = {
   extensions,
-  loading,
   preferences,
   servers,
   studies,

platform/core/src/redux/reducers/loading.js

@@ -1,33 +0,0 @@
-import cloneDeep from 'lodash.clonedeep';
-
-const defaultState = {
-  progress: {},
-  lastUpdated: null,
-};
-
-const loading = (state = defaultState, action) => {
-  let progress;
-  let lastUpdated;
-  switch (action.type) {
-    case 'SET_STUDY_LOADING_PROGRESS':
-      progress = cloneDeep(state).progress;
-      progress[action.progressId] = action.progressData;
-
-      // This is a workaround so we can easily identify changes
-      // to the progress object without doing deep comparison.
-      lastUpdated = new Date().getTime();
-
-      return Object.assign({}, state, { progress, lastUpdated });
-    case 'CLEAR_STUDY_LOADING_PROGRESS':
-      progress = cloneDeep(state).progress;
-      delete progress[action.progressId];
-
-      lastUpdated = new Date().getTime();
-
-      return Object.assign({}, state, { progress, lastUpdated });
-    default:
-      return state;
-  }
-};
-
-export default loading;

platform/core/src/services/MeasurementService/MeasurementService.js

@@ -260,7 +260,6 @@ class MeasurementService {
     const sourceInfo = this._getSourceInfo(source);
 
     if (!definition) {
-      console.log('TEST');
       log.warn('No source definition provided. Exiting early.');
       return;
     }

platform/ui/CHANGELOG.md

@@ -3,6 +3,25 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [1.10.0](https://github.com/OHIF/Viewers/compare/@ohif/ui@1.9.3...@ohif/ui@1.10.0) (2021-09-09)
+
+
+### Features
+
+* OHIF-1000: Study prefetcher ([#2466](https://github.com/OHIF/Viewers/issues/2466)) ([8f26045](https://github.com/OHIF/Viewers/commit/8f2604509d24092b721f1333289d838820d68cac))
+
+
+
+
+
+## [1.9.3](https://github.com/OHIF/Viewers/compare/@ohif/ui@1.9.2...@ohif/ui@1.9.3) (2021-09-03)
+
+**Note:** Version bump only for package @ohif/ui
+
+
+
+
+
 ## [1.9.2](https://github.com/OHIF/Viewers/compare/@ohif/ui@1.9.1...@ohif/ui@1.9.2) (2021-05-17)
 
 **Note:** Version bump only for package @ohif/ui

platform/ui/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/ui",
-  "version": "1.9.2",
+  "version": "1.10.0",
   "description": "A set of React components for Medical Imaging Viewers",
   "author": "OHIF Contributors",
   "license": "MIT",

platform/ui/src/components/roundedButtonGroup/RoundedButtonGroup.css

@@ -4,6 +4,29 @@
   z-index: 0;
 }
 
+.RoundedButtonGroup .badgeNumber-container {
+  background-color: var(--ui-border-color-dark);
+  width: 21px;
+  height: 21px;
+  justify-content: center;
+  align-items: center;
+  display: flex;
+  border-radius: 50%;
+  font-size: 12px;
+  font-weight: bold;
+  bottom: 10px;
+  left: 5px;
+  color: white;
+  position: absolute;
+}
+
+.RoundedButtonGroup .badgeNumber {
+  font-size: 10px;
+  font-weight: bold;
+  display: block;
+  width: 25px;
+}
+
 .roundedButtonWrapper {
   cursor: pointer;
   display: inline-block;
@@ -36,7 +59,12 @@
   z-index: 1;
 }
 
-.roundedButtonWrapper .roundedButton svg .roundedButtonWrapper .roundedButton span {
+.roundedButtonWrapper
+  .roundedButton
+  svg
+  .roundedButtonWrapper
+  .roundedButton
+  span {
   margin: 0 2px;
 }
 

platform/ui/src/components/roundedButtonGroup/RoundedButtonGroup.js

@@ -13,6 +13,7 @@ class RoundedButtonGroup extends Component {
       PropTypes.shape({
         value: PropTypes.any,
         label: PropTypes.string,
+        stateEvent: PropTypes.string,
         icon: PropTypes.oneOfType([
           PropTypes.string,
           PropTypes.shape({
@@ -30,6 +31,15 @@ class RoundedButtonGroup extends Component {
     value: null,
   };
 
+  state = {
+    badgeNumbers: [],
+  };
+
+  constructor() {
+    super();
+    this.onStateEvent = this.onStateEvent.bind(this);
+  }
+
   onClickOption = value => {
     let newValue = value;
     if (this.props.value === value) {
@@ -41,6 +51,48 @@ class RoundedButtonGroup extends Component {
     }
   };
 
+  onStateEvent(event) {
+    const optionIndex = this.props.options.findIndex(
+      o => o.value === event.detail.target
+    );
+    if (optionIndex > -1) {
+      const badgeNumbers = this.state.badgeNumbers;
+      badgeNumbers[optionIndex] = event.detail.badgeNumber;
+      this.setState({ badgeNumbers });
+    }
+  }
+
+  componentDidMount() {
+    this.props.options.forEach(option => {
+      if (option.stateEvent) {
+        document.addEventListener(option.stateEvent, this.onStateEvent);
+      }
+    });
+  }
+
+  componentDidUpdate(prevProps, prevState) {
+    this.props.options.forEach((option, index) => {
+      if (
+        option.stateEvent &&
+        option.stateEvent !==
+          (prevProps.options[index]
+            ? prevProps.options[index].stateEvent
+            : null)
+      ) {
+        document.removeEventListener(option.stateEvent, this.onStateEvent);
+        document.addEventListener(option.stateEvent, this.onStateEvent);
+      }
+    });
+  }
+
+  componentWillUnmount() {
+    this.props.options.forEach(option => {
+      if (option.stateEvent) {
+        document.removeEventListener(option.stateEvent, this.onStateEvent);
+      }
+    });
+  }
+
   render() {
     let className = classnames(
       RoundedButtonGroup.className,
@@ -62,6 +114,14 @@ class RoundedButtonGroup extends Component {
         <div className="bottomLabel">{option.bottomLabel}</div>
       );
 
+      let badgeNumber = this.state.badgeNumbers[index];
+      const badgeNumberOverflow = String(badgeNumber).length > 2;
+      badgeNumber = badgeNumber
+        ? badgeNumberOverflow
+          ? 99
+          : badgeNumber
+        : null;
+
       return (
         <div
           key={index}
@@ -70,6 +130,14 @@ class RoundedButtonGroup extends Component {
         >
           <div className="roundedButton">
             {optionText}
+            {badgeNumber && (
+              <div className="badgeNumber-container">
+                <span className="badgeNumber">
+                  {badgeNumber}
+                  {badgeNumberOverflow && '+'}
+                </span>
+              </div>
+            )}
             {iconProps && <Icon {...iconProps} />}
           </div>
           {bottomLabel}

platform/ui/src/components/studyBrowser/ImageThumbnail.js

@@ -2,7 +2,7 @@
 import './ImageThumbnail.styl';
 
 import { utils } from '@ohif/core';
-import React, { useState, useEffect, createRef } from 'react';
+import React, { useState, useEffect, createRef, useCallback } from 'react';
 import classNames from 'classnames';
 
 import PropTypes from 'prop-types';
@@ -23,6 +23,7 @@ function ImageThumbnail(props) {
     imageId,
     stackPercentComplete,
     error: propsError,
+    showProgressBar,
   } = props;
 
   const [isLoading, setLoading] = useState(false);
@@ -39,7 +40,8 @@ function ImageThumbnail(props) {
     loadingOrError = <ViewportLoadingIndicator />;
   }
 
-  const showStackLoadingProgressBar = stackPercentComplete !== undefined;
+  const showStackLoadingProgressBar =
+    showProgressBar && stackPercentComplete !== undefined;
 
   const shouldRenderToCanvas = () => {
     return imageId && !imageSrc;
@@ -71,11 +73,11 @@ function ImageThumbnail(props) {
     }
   };
 
-  const purgeCancelablePromise = () => {
+  const purgeCancelablePromise = useCallback(() => {
     if (cancelablePromise) {
       cancelablePromise.cancel();
     }
-  };
+  });
 
   useEffect(() => {
     return () => {
@@ -96,7 +98,13 @@ function ImageThumbnail(props) {
       setImagePromise();
       fetchImagePromise();
     }
-  }, [fetchImagePromise, image.imageId, imageId, purgeCancelablePromise, setImagePromise]);
+  }, [
+    fetchImagePromise,
+    image.imageId,
+    imageId,
+    purgeCancelablePromise,
+    setImagePromise,
+  ]);
 
   return (
     <div className={classNames('ImageThumbnail', { active: active })}>
@@ -104,14 +112,14 @@ function ImageThumbnail(props) {
         {shouldRenderToCanvas() ? (
           <canvas ref={canvasRef} width={width} height={height} />
         ) : (
-            <img
-              className="static-image"
-              src={imageSrc}
-              //width={this.props.width}
-              height={height}
-              alt={''}
-            />
-          )}
+          <img
+            className="static-image"
+            src={imageSrc}
+            //width={this.props.width}
+            height={height}
+            alt={''}
+          />
+        )}
       </div>
       {loadingOrError}
       {showStackLoadingProgressBar && (
@@ -135,6 +143,7 @@ ImageThumbnail.propTypes = {
   width: PropTypes.number,
   height: PropTypes.number,
   stackPercentComplete: PropTypes.number.isRequired,
+  showProgressBar: PropTypes.bool,
 };
 
 ImageThumbnail.defaultProps = {
@@ -143,6 +152,7 @@ ImageThumbnail.defaultProps = {
   stackPercentComplete: 0,
   width: 217,
   height: 123,
+  showProgressBar: true,
 };
 
 export default ImageThumbnail;

platform/ui/src/components/studyBrowser/StudyBrowser.js

@@ -9,6 +9,7 @@ function StudyBrowser(props) {
     onThumbnailClick,
     onThumbnailDoubleClick,
     supportsDrag,
+    showThumbnailProgressBar,
   } = props;
 
   return (
@@ -28,7 +29,6 @@ function StudyBrowser(props) {
                 numImageFrames,
                 SeriesDescription,
                 SeriesNumber,
-                stackPercentComplete,
                 hasWarnings,
               } = thumb;
 
@@ -54,13 +54,13 @@ function StudyBrowser(props) {
                     SeriesDescription={SeriesDescription}
                     SeriesNumber={SeriesNumber}
                     hasWarnings={hasWarnings}
-                    stackPercentComplete={stackPercentComplete}
                     // Events
                     onClick={onThumbnailClick.bind(
                       undefined,
                       displaySetInstanceUID
                     )}
                     onDoubleClick={onThumbnailDoubleClick}
+                    showProgressBar={showThumbnailProgressBar}
                   />
                 </div>
               );
@@ -95,6 +95,7 @@ StudyBrowser.propTypes = {
   supportsDrag: PropTypes.bool,
   onThumbnailClick: PropTypes.func,
   onThumbnailDoubleClick: PropTypes.func,
+  showThumbnailProgressBar: PropTypes.bool,
 };
 
 StudyBrowser.defaultProps = {
@@ -102,6 +103,7 @@ StudyBrowser.defaultProps = {
   supportsDrag: true,
   onThumbnailClick: noop,
   onThumbnailDoubleClick: noop,
+  showThumbnailProgressBar: true,
 };
 
 export { StudyBrowser };

platform/ui/src/components/studyBrowser/Thumbnail.js

@@ -1,34 +1,36 @@
 import React, { useState, useEffect } from 'react';
 import PropTypes from 'prop-types';
 import { useDrag } from 'react-dnd';
+import { classes } from '@ohif/core';
 import ImageThumbnail from './ImageThumbnail';
 import classNames from 'classnames';
 import { Icon } from './../../elements/Icon';
 import { Tooltip } from './../tooltip';
 import { OverlayTrigger } from './../overlayTrigger';
-
 import './Thumbnail.styl';
 
+const StudyLoadingListener = classes.StudyLoadingListener;
+
 function ThumbnailFooter({
   SeriesDescription,
   SeriesNumber,
   InstanceNumber,
   numImageFrames,
-  hasWarnings
+  hasWarnings,
 }) {
   const [inconsistencyWarnings, inconsistencyWarningsSet] = useState([]);
 
   useEffect(() => {
-    let unmounted = false
+    let unmounted = false;
     hasWarnings.then(response => {
       if (!unmounted) {
-        inconsistencyWarningsSet(response)
+        inconsistencyWarningsSet(response);
       }
-    })
+    });
     return () => {
-      unmounted = true
-    }
-  }, [])
+      unmounted = true;
+    };
+  }, [hasWarnings]);
 
   const infoOnly = !SeriesDescription;
 
@@ -41,7 +43,7 @@ function ThumbnailFooter({
     );
   };
 
-  const getWarningContent = (inconsistencyWarnings) => {
+  const getWarningContent = inconsistencyWarnings => {
     if (Array.isArray(inconsistencyWarnings)) {
       const listedWarnings = inconsistencyWarnings.map((warn, index) => {
         return <li key={index}>{warn}</li>;
@@ -54,8 +56,8 @@ function ThumbnailFooter({
   };
 
   const getWarningInfo = (SeriesNumber, inconsistencyWarnings) => {
-      return(
-        <React.Fragment>
+    return (
+      <React.Fragment>
         {inconsistencyWarnings && inconsistencyWarnings.length != 0 ? (
           <OverlayTrigger
             key={SeriesNumber}
@@ -67,7 +69,9 @@ function ThumbnailFooter({
                 id="tooltip-left"
               >
                 <div className="warningTitle">Series Inconsistencies</div>
-                <div className="warningContent">{getWarningContent(inconsistencyWarnings)}</div>
+                <div className="warningContent">
+                  {getWarningContent(inconsistencyWarnings)}
+                </div>
               </Tooltip>
             }
           >
@@ -79,9 +83,9 @@ function ThumbnailFooter({
           </OverlayTrigger>
         ) : (
           <React.Fragment></React.Fragment>
-          )}
+        )}
       </React.Fragment>
-      );
+    );
   };
   const getSeriesInformation = (
     SeriesNumber,
@@ -92,21 +96,27 @@ function ThumbnailFooter({
     if (!SeriesNumber && !InstanceNumber && !numImageFrames) {
       return;
     }
-    const seriesInformation =
+    const seriesInformation = (
       <div className="series-information">
         {getInfo(SeriesNumber, 'S:')}
         {getInfo(InstanceNumber, 'I:')}
         {getInfo(numImageFrames, '', 'image-frames')}
         {getWarningInfo(SeriesNumber, inconsistencyWarnings)}
       </div>
+    );
 
-    return (seriesInformation);
+    return seriesInformation;
   };
 
   return (
     <div className={classNames('series-details', { 'info-only': infoOnly })}>
       <div className="series-description">{SeriesDescription}</div>
-      {getSeriesInformation(SeriesNumber, InstanceNumber, numImageFrames, inconsistencyWarnings)}
+      {getSeriesInformation(
+        SeriesNumber,
+        InstanceNumber,
+        numImageFrames,
+        inconsistencyWarnings
+      )}
     </div>
   );
 }
@@ -124,14 +134,37 @@ function Thumbnail(props) {
     SeriesDescription,
     SeriesNumber,
     hasWarnings,
-    stackPercentComplete,
     StudyInstanceUID,
     onClick,
     onDoubleClick,
     onMouseDown,
     supportsDrag,
+    showProgressBar,
   } = props;
 
+  const [stackPercentComplete, setStackPercentComplete] = useState(0);
+  useEffect(() => {
+    const onProgressChange = ({ detail }) => {
+      const { progressId, progressData } = detail;
+      if (`StackProgress:${displaySetInstanceUID}` === progressId) {
+        const percent = progressData ? progressData.percentComplete : 0;
+        setStackPercentComplete(percent);
+      }
+    };
+
+    document.addEventListener(
+      StudyLoadingListener.events.OnProgress,
+      onProgressChange
+    );
+
+    return () => {
+      document.removeEventListener(
+        StudyLoadingListener.events.OnProgress,
+        onProgressChange
+      );
+    };
+  }, [displaySetInstanceUID]);
+
   const [collectedProps, drag, dragPreview] = useDrag({
     // `droppedItem` in `dropTarget`
     // The only data it will have access to
@@ -164,6 +197,7 @@ function Thumbnail(props) {
           imageId={imageId}
           error={error}
           stackPercentComplete={stackPercentComplete}
+          showProgressBar={showProgressBar}
         />
       )}
       {/* SHOW TEXT ALTERNATIVE */}
@@ -203,6 +237,7 @@ Thumbnail.propTypes = {
   onDoubleClick: PropTypes.func,
   onClick: PropTypes.func,
   onMouseDown: PropTypes.func,
+  showProgressBar: PropTypes.bool,
 };
 
 Thumbnail.defaultProps = {

platform/viewer/.webpack/webpack.pwa.js

@@ -41,6 +41,13 @@ module.exports = (env, argv) => {
       path: DIST_DIR,
       filename: isProdBuild ? '[name].bundle.[chunkhash].js' : '[name].js',
       publicPath: PUBLIC_URL, // Used by HtmlWebPackPlugin for asset prefix
+      devtoolModuleFilenameTemplate: function(info) {
+        if (isProdBuild) {
+          return `webpack:///${info.resourcePath}`;
+        } else {
+          return 'file:///' + encodeURI(info.absoluteResourcePath);
+        }
+      },
     },
     module: {
       rules: [...extractStyleChunksRule(isProdBuild)],

platform/viewer/CHANGELOG.md

@@ -3,6 +3,55 @@
 All notable changes to this project will be documented in this file.
 See [Conventional Commits](https://conventionalcommits.org) for commit guidelines.
 
+# [4.10.0](https://github.com/OHIF/Viewers/compare/@ohif/viewer@4.9.24...@ohif/viewer@4.10.0) (2021-09-09)
+
+
+### Features
+
+* OHIF-1000: Study prefetcher ([#2466](https://github.com/OHIF/Viewers/issues/2466)) ([8f26045](https://github.com/OHIF/Viewers/commit/8f2604509d24092b721f1333289d838820d68cac))
+
+
+
+
+
+## [4.9.24](https://github.com/OHIF/Viewers/compare/@ohif/viewer@4.9.23...@ohif/viewer@4.9.24) (2021-09-03)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
+## [4.9.23](https://github.com/OHIF/Viewers/compare/@ohif/viewer@4.9.22...@ohif/viewer@4.9.23) (2021-08-30)
+
+
+### Bug Fixes
+
+* MPR metadata parsing for spacings ([#2517](https://github.com/OHIF/Viewers/issues/2517)) ([715dfc5](https://github.com/OHIF/Viewers/commit/715dfc556a3883de31d74012dcc99e431d91f57d))
+
+
+
+
+
+## [4.9.22](https://github.com/OHIF/Viewers/compare/@ohif/viewer@4.9.21...@ohif/viewer@4.9.22) (2021-08-19)
+
+
+### Bug Fixes
+
+* Remove internet dependency for workbox (addressing [#2109](https://github.com/OHIF/Viewers/issues/2109)) ([#2151](https://github.com/OHIF/Viewers/issues/2151)) ([5f92f6e](https://github.com/OHIF/Viewers/commit/5f92f6ec7faa11d3fdc33ef8f22971a0bab87a36))
+
+
+
+
+
+## [4.9.21](https://github.com/OHIF/Viewers/compare/@ohif/viewer@4.9.20...@ohif/viewer@4.9.21) (2021-07-26)
+
+**Note:** Version bump only for package @ohif/viewer
+
+
+
+
+
 ## [4.9.20](https://github.com/OHIF/Viewers/compare/@ohif/viewer@4.9.19...@ohif/viewer@4.9.20) (2021-06-03)
 
 **Note:** Version bump only for package @ohif/viewer

platform/viewer/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@ohif/viewer",
-  "version": "4.9.20",
+  "version": "4.10.0",
   "description": "OHIF Viewer",
   "author": "OHIF Contributors",
   "license": "MIT",
@@ -49,18 +49,18 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.5.5",
-    "@ohif/core": "^2.13.13",
-    "@ohif/extension-cornerstone": "^2.10.9",
+    "@ohif/core": "^2.14.0",
+    "@ohif/extension-cornerstone": "^2.11.0",
     "@ohif/extension-debugging": "^0.2.2",
     "@ohif/extension-dicom-html": "^1.3.10",
     "@ohif/extension-dicom-microscopy": "^0.52.0",
     "@ohif/extension-dicom-pdf": "^1.0.6",
-    "@ohif/extension-dicom-rt": "^0.6.13",
-    "@ohif/extension-dicom-segmentation": "^0.6.10",
+    "@ohif/extension-dicom-rt": "^0.6.14",
+    "@ohif/extension-dicom-segmentation": "^0.6.11",
     "@ohif/extension-lesion-tracker": "^0.2.1",
-    "@ohif/extension-vtk": "^1.11.14",
+    "@ohif/extension-vtk": "^1.11.17",
     "@ohif/i18n": "^0.53.0",
-    "@ohif/ui": "^1.9.2",
+    "@ohif/ui": "^1.10.0",
     "@tanem/react-nprogress": "^1.1.25",
     "classnames": "^2.2.6",
     "core-js": "^3.2.1",

platform/viewer/public/config/default.js

@@ -5,6 +5,15 @@ window.config = {
   showStudyList: true,
   filterQueryParam: false,
   disableServersCache: false,
+  studyPrefetcher: {
+    enabled: true,
+    order: 'closest',
+    displaySetCount: 3,
+    preventCache: false,
+    prefetchDisplaySetsTimeout: 300,
+    displayProgress: true,
+    includeActiveDisplaySet: true,
+  },
   servers: {
     dicomWeb: [
       {
@@ -124,6 +133,6 @@ window.config = {
   // If the server is particularly slow to respond to series metadata
   //  requests as it extracts the metadata from raw files everytime,
   //  try setting this to even lower value
-  // Leave it undefined for no limit, sutiable for HTTP/2 enabled servers
+  // Leave it undefined for no limit, suitable for HTTP/2 enabled servers
   // maxConcurrentMetadataRequests: 5,
 };

platform/viewer/public/config/netlify.js

@@ -1,6 +1,15 @@
 window.config = {
   routerBasename: '/pwa',
   showStudyList: true,
+  studyPrefetcher: {
+    enabled: true,
+    order: 'closest',
+    displaySetCount: 3,
+    preventCache: false,
+    prefetchDisplaySetsTimeout: 300,
+    displayProgress: true,
+    includeActiveDisplaySet: true,
+  },
   servers: {
     dicomWeb: [
       {

platform/viewer/public/init-service-worker.js

@@ -3,7 +3,17 @@
 // modules, so it's perfectly fine to serve this code to any browsers
 // (older browsers will just ignore it)
 //
-import { Workbox } from 'https://storage.googleapis.com/workbox-cdn/releases/5.0.0-beta.1/workbox-window.prod.mjs';
+
+// The workbox code is locally stored and can be updated
+// by running `npx workbox-cli copyLibraries platform/viewer/public/third_party/workbox`
+// from the root directory.
+// Since the workbox version may change with copyLibraries ensure that the
+// right version is used here and in `service-worker.js`
+import { Workbox } from './third_party/workbox/workbox-v5.1.4/workbox-window.dev.mjs';
+
+// Alternatively use the internet version by commenting out the above import and
+// replace with this line and do the corresponding change in service-worker.js
+// import { Workbox } from 'https://storage.googleapis.com/workbox-cdn/releases/5.0.0-beta.1/workbox-window.prod.mjs';
 
 var supportsServiceWorker = 'serviceWorker' in navigator;
 var isNotLocalDevelopment =
@@ -11,6 +21,7 @@ var isNotLocalDevelopment =
 
 if (supportsServiceWorker && isNotLocalDevelopment) {
   const swFileLocation = (window.PUBLIC_URL || '/') + 'sw.js';
+
   const wb = new Workbox(swFileLocation);
 
   // Add an event listener to detect when the registered

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-background-sync.dev.js

@@ -0,0 +1,818 @@
+this.workbox = this.workbox || {};
+this.workbox.backgroundSync = (function (exports, WorkboxError_js, logger_js, assert_js, getFriendlyURL_js, DBWrapper_js) {
+    'use strict';
+
+    try {
+      self['workbox:background-sync:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const DB_VERSION = 3;
+    const DB_NAME = 'workbox-background-sync';
+    const OBJECT_STORE_NAME = 'requests';
+    const INDEXED_PROP = 'queueName';
+    /**
+     * A class to manage storing requests from a Queue in IndexedDB,
+     * indexed by their queue name for easier access.
+     *
+     * @private
+     */
+
+    class QueueStore {
+      /**
+       * Associates this instance with a Queue instance, so entries added can be
+       * identified by their queue name.
+       *
+       * @param {string} queueName
+       * @private
+       */
+      constructor(queueName) {
+        this._queueName = queueName;
+        this._db = new DBWrapper_js.DBWrapper(DB_NAME, DB_VERSION, {
+          onupgradeneeded: this._upgradeDb
+        });
+      }
+      /**
+       * Append an entry last in the queue.
+       *
+       * @param {Object} entry
+       * @param {Object} entry.requestData
+       * @param {number} [entry.timestamp]
+       * @param {Object} [entry.metadata]
+       * @private
+       */
+
+
+      async pushEntry(entry) {
+        {
+          assert_js.assert.isType(entry, 'object', {
+            moduleName: 'workbox-background-sync',
+            className: 'QueueStore',
+            funcName: 'pushEntry',
+            paramName: 'entry'
+          });
+          assert_js.assert.isType(entry.requestData, 'object', {
+            moduleName: 'workbox-background-sync',
+            className: 'QueueStore',
+            funcName: 'pushEntry',
+            paramName: 'entry.requestData'
+          });
+        } // Don't specify an ID since one is automatically generated.
+
+
+        delete entry.id;
+        entry.queueName = this._queueName;
+        await this._db.add(OBJECT_STORE_NAME, entry);
+      }
+      /**
+       * Prepend an entry first in the queue.
+       *
+       * @param {Object} entry
+       * @param {Object} entry.requestData
+       * @param {number} [entry.timestamp]
+       * @param {Object} [entry.metadata]
+       * @private
+       */
+
+
+      async unshiftEntry(entry) {
+        {
+          assert_js.assert.isType(entry, 'object', {
+            moduleName: 'workbox-background-sync',
+            className: 'QueueStore',
+            funcName: 'unshiftEntry',
+            paramName: 'entry'
+          });
+          assert_js.assert.isType(entry.requestData, 'object', {
+            moduleName: 'workbox-background-sync',
+            className: 'QueueStore',
+            funcName: 'unshiftEntry',
+            paramName: 'entry.requestData'
+          });
+        }
+
+        const [firstEntry] = await this._db.getAllMatching(OBJECT_STORE_NAME, {
+          count: 1
+        });
+
+        if (firstEntry) {
+          // Pick an ID one less than the lowest ID in the object store.
+          entry.id = firstEntry.id - 1;
+        } else {
+          // Otherwise let the auto-incrementor assign the ID.
+          delete entry.id;
+        }
+
+        entry.queueName = this._queueName;
+        await this._db.add(OBJECT_STORE_NAME, entry);
+      }
+      /**
+       * Removes and returns the last entry in the queue matching the `queueName`.
+       *
+       * @return {Promise<Object>}
+       * @private
+       */
+
+
+      async popEntry() {
+        return this._removeEntry({
+          direction: 'prev'
+        });
+      }
+      /**
+       * Removes and returns the first entry in the queue matching the `queueName`.
+       *
+       * @return {Promise<Object>}
+       * @private
+       */
+
+
+      async shiftEntry() {
+        return this._removeEntry({
+          direction: 'next'
+        });
+      }
+      /**
+       * Returns all entries in the store matching the `queueName`.
+       *
+       * @param {Object} options See {@link module:workbox-background-sync.Queue~getAll}
+       * @return {Promise<Array<Object>>}
+       * @private
+       */
+
+
+      async getAll() {
+        return await this._db.getAllMatching(OBJECT_STORE_NAME, {
+          index: INDEXED_PROP,
+          query: IDBKeyRange.only(this._queueName)
+        });
+      }
+      /**
+       * Deletes the entry for the given ID.
+       *
+       * WARNING: this method does not ensure the deleted enry belongs to this
+       * queue (i.e. matches the `queueName`). But this limitation is acceptable
+       * as this class is not publicly exposed. An additional check would make
+       * this method slower than it needs to be.
+       *
+       * @private
+       * @param {number} id
+       */
+
+
+      async deleteEntry(id) {
+        await this._db.delete(OBJECT_STORE_NAME, id);
+      }
+      /**
+       * Removes and returns the first or last entry in the queue (based on the
+       * `direction` argument) matching the `queueName`.
+       *
+       * @return {Promise<Object>}
+       * @private
+       */
+
+
+      async _removeEntry({
+        direction
+      }) {
+        const [entry] = await this._db.getAllMatching(OBJECT_STORE_NAME, {
+          direction,
+          index: INDEXED_PROP,
+          query: IDBKeyRange.only(this._queueName),
+          count: 1
+        });
+
+        if (entry) {
+          await this.deleteEntry(entry.id);
+          return entry;
+        }
+      }
+      /**
+       * Upgrades the database given an `upgradeneeded` event.
+       *
+       * @param {Event} event
+       * @private
+       */
+
+
+      _upgradeDb(event) {
+        const db = event.target.result;
+
+        if (event.oldVersion > 0 && event.oldVersion < DB_VERSION) {
+          if (db.objectStoreNames.contains(OBJECT_STORE_NAME)) {
+            db.deleteObjectStore(OBJECT_STORE_NAME);
+          }
+        }
+
+        const objStore = db.createObjectStore(OBJECT_STORE_NAME, {
+          autoIncrement: true,
+          keyPath: 'id'
+        });
+        objStore.createIndex(INDEXED_PROP, INDEXED_PROP, {
+          unique: false
+        });
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const serializableProperties = ['method', 'referrer', 'referrerPolicy', 'mode', 'credentials', 'cache', 'redirect', 'integrity', 'keepalive'];
+    /**
+     * A class to make it easier to serialize and de-serialize requests so they
+     * can be stored in IndexedDB.
+     *
+     * @private
+     */
+
+    class StorableRequest {
+      /**
+       * Accepts an object of request data that can be used to construct a
+       * `Request` but can also be stored in IndexedDB.
+       *
+       * @param {Object} requestData An object of request data that includes the
+       *     `url` plus any relevant properties of
+       *     [requestInit]{@link https://fetch.spec.whatwg.org/#requestinit}.
+       * @private
+       */
+      constructor(requestData) {
+        {
+          assert_js.assert.isType(requestData, 'object', {
+            moduleName: 'workbox-background-sync',
+            className: 'StorableRequest',
+            funcName: 'constructor',
+            paramName: 'requestData'
+          });
+          assert_js.assert.isType(requestData.url, 'string', {
+            moduleName: 'workbox-background-sync',
+            className: 'StorableRequest',
+            funcName: 'constructor',
+            paramName: 'requestData.url'
+          });
+        } // If the request's mode is `navigate`, convert it to `same-origin` since
+        // navigation requests can't be constructed via script.
+
+
+        if (requestData['mode'] === 'navigate') {
+          requestData['mode'] = 'same-origin';
+        }
+
+        this._requestData = requestData;
+      }
+      /**
+       * Converts a Request object to a plain object that can be structured
+       * cloned or JSON-stringified.
+       *
+       * @param {Request} request
+       * @return {Promise<StorableRequest>}
+       *
+       * @private
+       */
+
+
+      static async fromRequest(request) {
+        const requestData = {
+          url: request.url,
+          headers: {}
+        }; // Set the body if present.
+
+        if (request.method !== 'GET') {
+          // Use ArrayBuffer to support non-text request bodies.
+          // NOTE: we can't use Blobs becuse Safari doesn't support storing
+          // Blobs in IndexedDB in some cases:
+          // https://github.com/dfahlander/Dexie.js/issues/618#issuecomment-398348457
+          requestData.body = await request.clone().arrayBuffer();
+        } // Convert the headers from an iterable to an object.
+
+
+        for (const [key, value] of request.headers.entries()) {
+          requestData.headers[key] = value;
+        } // Add all other serializable request properties
+
+
+        for (const prop of serializableProperties) {
+          if (request[prop] !== undefined) {
+            requestData[prop] = request[prop];
+          }
+        }
+
+        return new StorableRequest(requestData);
+      }
+      /**
+       * Returns a deep clone of the instances `_requestData` object.
+       *
+       * @return {Object}
+       *
+       * @private
+       */
+
+
+      toObject() {
+        const requestData = Object.assign({}, this._requestData);
+        requestData.headers = Object.assign({}, this._requestData.headers);
+
+        if (requestData.body) {
+          requestData.body = requestData.body.slice(0);
+        }
+
+        return requestData;
+      }
+      /**
+       * Converts this instance to a Request.
+       *
+       * @return {Request}
+       *
+       * @private
+       */
+
+
+      toRequest() {
+        return new Request(this._requestData.url, this._requestData);
+      }
+      /**
+       * Creates and returns a deep clone of the instance.
+       *
+       * @return {StorableRequest}
+       *
+       * @private
+       */
+
+
+      clone() {
+        return new StorableRequest(this.toObject());
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const TAG_PREFIX = 'workbox-background-sync';
+    const MAX_RETENTION_TIME = 60 * 24 * 7; // 7 days in minutes
+
+    const queueNames = new Set();
+    /**
+     * Converts a QueueStore entry into the format exposed by Queue. This entails
+     * converting the request data into a real request and omitting the `id` and
+     * `queueName` properties.
+     *
+     * @param {Object} queueStoreEntry
+     * @return {Object}
+     * @private
+     */
+
+    const convertEntry = queueStoreEntry => {
+      const queueEntry = {
+        request: new StorableRequest(queueStoreEntry.requestData).toRequest(),
+        timestamp: queueStoreEntry.timestamp
+      };
+
+      if (queueStoreEntry.metadata) {
+        queueEntry.metadata = queueStoreEntry.metadata;
+      }
+
+      return queueEntry;
+    };
+    /**
+     * A class to manage storing failed requests in IndexedDB and retrying them
+     * later. All parts of the storing and replaying process are observable via
+     * callbacks.
+     *
+     * @memberof module:workbox-background-sync
+     */
+
+
+    class Queue {
+      /**
+       * Creates an instance of Queue with the given options
+       *
+       * @param {string} name The unique name for this queue. This name must be
+       *     unique as it's used to register sync events and store requests
+       *     in IndexedDB specific to this instance. An error will be thrown if
+       *     a duplicate name is detected.
+       * @param {Object} [options]
+       * @param {Function} [options.onSync] A function that gets invoked whenever
+       *     the 'sync' event fires. The function is invoked with an object
+       *     containing the `queue` property (referencing this instance), and you
+       *     can use the callback to customize the replay behavior of the queue.
+       *     When not set the `replayRequests()` method is called.
+       *     Note: if the replay fails after a sync event, make sure you throw an
+       *     error, so the browser knows to retry the sync event later.
+       * @param {number} [options.maxRetentionTime=7 days] The amount of time (in
+       *     minutes) a request may be retried. After this amount of time has
+       *     passed, the request will be deleted from the queue.
+       */
+      constructor(name, {
+        onSync,
+        maxRetentionTime
+      } = {}) {
+        this._syncInProgress = false;
+        this._requestsAddedDuringSync = false; // Ensure the store name is not already being used
+
+        if (queueNames.has(name)) {
+          throw new WorkboxError_js.WorkboxError('duplicate-queue-name', {
+            name
+          });
+        } else {
+          queueNames.add(name);
+        }
+
+        this._name = name;
+        this._onSync = onSync || this.replayRequests;
+        this._maxRetentionTime = maxRetentionTime || MAX_RETENTION_TIME;
+        this._queueStore = new QueueStore(this._name);
+
+        this._addSyncListener();
+      }
+      /**
+       * @return {string}
+       */
+
+
+      get name() {
+        return this._name;
+      }
+      /**
+       * Stores the passed request in IndexedDB (with its timestamp and any
+       * metadata) at the end of the queue.
+       *
+       * @param {Object} entry
+       * @param {Request} entry.request The request to store in the queue.
+       * @param {Object} [entry.metadata] Any metadata you want associated with the
+       *     stored request. When requests are replayed you'll have access to this
+       *     metadata object in case you need to modify the request beforehand.
+       * @param {number} [entry.timestamp] The timestamp (Epoch time in
+       *     milliseconds) when the request was first added to the queue. This is
+       *     used along with `maxRetentionTime` to remove outdated requests. In
+       *     general you don't need to set this value, as it's automatically set
+       *     for you (defaulting to `Date.now()`), but you can update it if you
+       *     don't want particular requests to expire.
+       */
+
+
+      async pushRequest(entry) {
+        {
+          assert_js.assert.isType(entry, 'object', {
+            moduleName: 'workbox-background-sync',
+            className: 'Queue',
+            funcName: 'pushRequest',
+            paramName: 'entry'
+          });
+          assert_js.assert.isInstance(entry.request, Request, {
+            moduleName: 'workbox-background-sync',
+            className: 'Queue',
+            funcName: 'pushRequest',
+            paramName: 'entry.request'
+          });
+        }
+
+        await this._addRequest(entry, 'push');
+      }
+      /**
+       * Stores the passed request in IndexedDB (with its timestamp and any
+       * metadata) at the beginning of the queue.
+       *
+       * @param {Object} entry
+       * @param {Request} entry.request The request to store in the queue.
+       * @param {Object} [entry.metadata] Any metadata you want associated with the
+       *     stored request. When requests are replayed you'll have access to this
+       *     metadata object in case you need to modify the request beforehand.
+       * @param {number} [entry.timestamp] The timestamp (Epoch time in
+       *     milliseconds) when the request was first added to the queue. This is
+       *     used along with `maxRetentionTime` to remove outdated requests. In
+       *     general you don't need to set this value, as it's automatically set
+       *     for you (defaulting to `Date.now()`), but you can update it if you
+       *     don't want particular requests to expire.
+       */
+
+
+      async unshiftRequest(entry) {
+        {
+          assert_js.assert.isType(entry, 'object', {
+            moduleName: 'workbox-background-sync',
+            className: 'Queue',
+            funcName: 'unshiftRequest',
+            paramName: 'entry'
+          });
+          assert_js.assert.isInstance(entry.request, Request, {
+            moduleName: 'workbox-background-sync',
+            className: 'Queue',
+            funcName: 'unshiftRequest',
+            paramName: 'entry.request'
+          });
+        }
+
+        await this._addRequest(entry, 'unshift');
+      }
+      /**
+       * Removes and returns the last request in the queue (along with its
+       * timestamp and any metadata). The returned object takes the form:
+       * `{request, timestamp, metadata}`.
+       *
+       * @return {Promise<Object>}
+       */
+
+
+      async popRequest() {
+        return this._removeRequest('pop');
+      }
+      /**
+       * Removes and returns the first request in the queue (along with its
+       * timestamp and any metadata). The returned object takes the form:
+       * `{request, timestamp, metadata}`.
+       *
+       * @return {Promise<Object>}
+       */
+
+
+      async shiftRequest() {
+        return this._removeRequest('shift');
+      }
+      /**
+       * Returns all the entries that have not expired (per `maxRetentionTime`).
+       * Any expired entries are removed from the queue.
+       *
+       * @return {Promise<Array<Object>>}
+       */
+
+
+      async getAll() {
+        const allEntries = await this._queueStore.getAll();
+        const now = Date.now();
+        const unexpiredEntries = [];
+
+        for (const entry of allEntries) {
+          // Ignore requests older than maxRetentionTime. Call this function
+          // recursively until an unexpired request is found.
+          const maxRetentionTimeInMs = this._maxRetentionTime * 60 * 1000;
+
+          if (now - entry.timestamp > maxRetentionTimeInMs) {
+            await this._queueStore.deleteEntry(entry.id);
+          } else {
+            unexpiredEntries.push(convertEntry(entry));
+          }
+        }
+
+        return unexpiredEntries;
+      }
+      /**
+       * Adds the entry to the QueueStore and registers for a sync event.
+       *
+       * @param {Object} entry
+       * @param {Request} entry.request
+       * @param {Object} [entry.metadata]
+       * @param {number} [entry.timestamp=Date.now()]
+       * @param {string} operation ('push' or 'unshift')
+       * @private
+       */
+
+
+      async _addRequest({
+        request,
+        metadata,
+        timestamp = Date.now()
+      }, operation) {
+        const storableRequest = await StorableRequest.fromRequest(request.clone());
+        const entry = {
+          requestData: storableRequest.toObject(),
+          timestamp
+        }; // Only include metadata if it's present.
+
+        if (metadata) {
+          entry.metadata = metadata;
+        }
+
+        await this._queueStore[`${operation}Entry`](entry);
+
+        {
+          logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(request.url)}' has ` + `been added to background sync queue '${this._name}'.`);
+        } // Don't register for a sync if we're in the middle of a sync. Instead,
+        // we wait until the sync is complete and call register if
+        // `this._requestsAddedDuringSync` is true.
+
+
+        if (this._syncInProgress) {
+          this._requestsAddedDuringSync = true;
+        } else {
+          await this.registerSync();
+        }
+      }
+      /**
+       * Removes and returns the first or last (depending on `operation`) entry
+       * from the QueueStore that's not older than the `maxRetentionTime`.
+       *
+       * @param {string} operation ('pop' or 'shift')
+       * @return {Object|undefined}
+       * @private
+       */
+
+
+      async _removeRequest(operation) {
+        const now = Date.now();
+        const entry = await this._queueStore[`${operation}Entry`]();
+
+        if (entry) {
+          // Ignore requests older than maxRetentionTime. Call this function
+          // recursively until an unexpired request is found.
+          const maxRetentionTimeInMs = this._maxRetentionTime * 60 * 1000;
+
+          if (now - entry.timestamp > maxRetentionTimeInMs) {
+            return this._removeRequest(operation);
+          }
+
+          return convertEntry(entry);
+        } else {
+          return undefined;
+        }
+      }
+      /**
+       * Loops through each request in the queue and attempts to re-fetch it.
+       * If any request fails to re-fetch, it's put back in the same position in
+       * the queue (which registers a retry for the next sync event).
+       */
+
+
+      async replayRequests() {
+        let entry;
+
+        while (entry = await this.shiftRequest()) {
+          try {
+            await fetch(entry.request.clone());
+
+            if ("dev" !== 'production') {
+              logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(entry.request.url)}'` + `has been replayed in queue '${this._name}'`);
+            }
+          } catch (error) {
+            await this.unshiftRequest(entry);
+
+            {
+              logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(entry.request.url)}'` + `failed to replay, putting it back in queue '${this._name}'`);
+            }
+
+            throw new WorkboxError_js.WorkboxError('queue-replay-failed', {
+              name: this._name
+            });
+          }
+        }
+
+        {
+          logger_js.logger.log(`All requests in queue '${this.name}' have successfully ` + `replayed; the queue is now empty!`);
+        }
+      }
+      /**
+       * Registers a sync event with a tag unique to this instance.
+       */
+
+
+      async registerSync() {
+        if ('sync' in self.registration) {
+          try {
+            await self.registration.sync.register(`${TAG_PREFIX}:${this._name}`);
+          } catch (err) {
+            // This means the registration failed for some reason, possibly due to
+            // the user disabling it.
+            {
+              logger_js.logger.warn(`Unable to register sync event for '${this._name}'.`, err);
+            }
+          }
+        }
+      }
+      /**
+       * In sync-supporting browsers, this adds a listener for the sync event.
+       * In non-sync-supporting browsers, this will retry the queue on service
+       * worker startup.
+       *
+       * @private
+       */
+
+
+      _addSyncListener() {
+        if ('sync' in self.registration) {
+          self.addEventListener('sync', event => {
+            if (event.tag === `${TAG_PREFIX}:${this._name}`) {
+              {
+                logger_js.logger.log(`Background sync for tag '${event.tag}'` + `has been received`);
+              }
+
+              const syncComplete = async () => {
+                this._syncInProgress = true;
+                let syncError;
+
+                try {
+                  await this._onSync({
+                    queue: this
+                  });
+                } catch (error) {
+                  syncError = error; // Rethrow the error. Note: the logic in the finally clause
+                  // will run before this gets rethrown.
+
+                  throw syncError;
+                } finally {
+                  // New items may have been added to the queue during the sync,
+                  // so we need to register for a new sync if that's happened...
+                  // Unless there was an error during the sync, in which
+                  // case the browser will automatically retry later, as long
+                  // as `event.lastChance` is not true.
+                  if (this._requestsAddedDuringSync && !(syncError && !event.lastChance)) {
+                    await this.registerSync();
+                  }
+
+                  this._syncInProgress = false;
+                  this._requestsAddedDuringSync = false;
+                }
+              };
+
+              event.waitUntil(syncComplete());
+            }
+          });
+        } else {
+          {
+            logger_js.logger.log(`Background sync replaying without background sync event`);
+          } // If the browser doesn't support background sync, retry
+          // every time the service worker starts up as a fallback.
+
+
+          this._onSync({
+            queue: this
+          });
+        }
+      }
+      /**
+       * Returns the set of queue names. This is primarily used to reset the list
+       * of queue names in tests.
+       *
+       * @return {Set}
+       *
+       * @private
+       */
+
+
+      static get _queueNames() {
+        return queueNames;
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * A class implementing the `fetchDidFail` lifecycle callback. This makes it
+     * easier to add failed requests to a background sync Queue.
+     *
+     * @memberof module:workbox-background-sync
+     */
+
+    class BackgroundSyncPlugin {
+      /**
+       * @param {string} name See the [Queue]{@link module:workbox-background-sync.Queue}
+       *     documentation for parameter details.
+       * @param {Object} [options] See the
+       *     [Queue]{@link module:workbox-background-sync.Queue} documentation for
+       *     parameter details.
+       */
+      constructor(name, options) {
+        /**
+         * @param {Object} options
+         * @param {Request} options.request
+         * @private
+         */
+        this.fetchDidFail = async ({
+          request
+        }) => {
+          await this._queue.pushRequest({
+            request
+          });
+        };
+
+        this._queue = new Queue(name, options);
+      }
+
+    }
+
+    exports.BackgroundSyncPlugin = BackgroundSyncPlugin;
+    exports.Queue = Queue;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
+//# sourceMappingURL=workbox-background-sync.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-background-sync.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-background-sync.dev.js","sources":["../_version.js","../lib/QueueStore.js","../lib/StorableRequest.js","../Queue.js","../BackgroundSyncPlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:background-sync:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { DBWrapper } from 'workbox-core/_private/DBWrapper.js';\nimport '../_version.js';\nconst DB_VERSION = 3;\nconst DB_NAME = 'workbox-background-sync';\nconst OBJECT_STORE_NAME = 'requests';\nconst INDEXED_PROP = 'queueName';\n/**\n * A class to manage storing requests from a Queue in IndexedDB,\n * indexed by their queue name for easier access.\n *\n * @private\n */\nexport class QueueStore {\n    /**\n     * Associates this instance with a Queue instance, so entries added can be\n     * identified by their queue name.\n     *\n     * @param {string} queueName\n     * @private\n     */\n    constructor(queueName) {\n        this._queueName = queueName;\n        this._db = new DBWrapper(DB_NAME, DB_VERSION, {\n            onupgradeneeded: this._upgradeDb,\n        });\n    }\n    /**\n     * Append an entry last in the queue.\n     *\n     * @param {Object} entry\n     * @param {Object} entry.requestData\n     * @param {number} [entry.timestamp]\n     * @param {Object} [entry.metadata]\n     * @private\n     */\n    async pushEntry(entry) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(entry, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'pushEntry',\n                paramName: 'entry',\n            });\n            assert.isType(entry.requestData, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'pushEntry',\n                paramName: 'entry.requestData',\n            });\n        }\n        // Don't specify an ID since one is automatically generated.\n        delete entry.id;\n        entry.queueName = this._queueName;\n        await this._db.add(OBJECT_STORE_NAME, entry);\n    }\n    /**\n     * Prepend an entry first in the queue.\n     *\n     * @param {Object} entry\n     * @param {Object} entry.requestData\n     * @param {number} [entry.timestamp]\n     * @param {Object} [entry.metadata]\n     * @private\n     */\n    async unshiftEntry(entry) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(entry, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'unshiftEntry',\n                paramName: 'entry',\n            });\n            assert.isType(entry.requestData, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'unshiftEntry',\n                paramName: 'entry.requestData',\n            });\n        }\n        const [firstEntry] = await this._db.getAllMatching(OBJECT_STORE_NAME, {\n            count: 1,\n        });\n        if (firstEntry) {\n            // Pick an ID one less than the lowest ID in the object store.\n            entry.id = firstEntry.id - 1;\n        }\n        else {\n            // Otherwise let the auto-incrementor assign the ID.\n            delete entry.id;\n        }\n        entry.queueName = this._queueName;\n        await this._db.add(OBJECT_STORE_NAME, entry);\n    }\n    /**\n     * Removes and returns the last entry in the queue matching the `queueName`.\n     *\n     * @return {Promise<Object>}\n     * @private\n     */\n    async popEntry() {\n        return this._removeEntry({ direction: 'prev' });\n    }\n    /**\n     * Removes and returns the first entry in the queue matching the `queueName`.\n     *\n     * @return {Promise<Object>}\n     * @private\n     */\n    async shiftEntry() {\n        return this._removeEntry({ direction: 'next' });\n    }\n    /**\n     * Returns all entries in the store matching the `queueName`.\n     *\n     * @param {Object} options See {@link module:workbox-background-sync.Queue~getAll}\n     * @return {Promise<Array<Object>>}\n     * @private\n     */\n    async getAll() {\n        return await this._db.getAllMatching(OBJECT_STORE_NAME, {\n            index: INDEXED_PROP,\n            query: IDBKeyRange.only(this._queueName),\n        });\n    }\n    /**\n     * Deletes the entry for the given ID.\n     *\n     * WARNING: this method does not ensure the deleted enry belongs to this\n     * queue (i.e. matches the `queueName`). But this limitation is acceptable\n     * as this class is not publicly exposed. An additional check would make\n     * this method slower than iLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-background-sync.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.backgroundSync=function(t,e,s,i,n){"use strict";try{self["workbox:background-sync:5.1.4"]&&_()}catch(t){}class a{constructor(t){this.t=t,this.s=new n.DBWrapper("workbox-background-sync",3,{onupgradeneeded:this.i})}async pushEntry(t){delete t.id,t.queueName=this.t,await this.s.add("requests",t)}async unshiftEntry(t){const[e]=await this.s.getAllMatching("requests",{count:1});e?t.id=e.id-1:delete t.id,t.queueName=this.t,await this.s.add("requests",t)}async popEntry(){return this.h({direction:"prev"})}async shiftEntry(){return this.h({direction:"next"})}async getAll(){return await this.s.getAllMatching("requests",{index:"queueName",query:IDBKeyRange.only(this.t)})}async deleteEntry(t){await this.s.delete("requests",t)}async h({direction:t}){const[e]=await this.s.getAllMatching("requests",{direction:t,index:"queueName",query:IDBKeyRange.only(this.t),count:1});if(e)return await this.deleteEntry(e.id),e}i(t){const e=t.target.result;t.oldVersion>0&&t.oldVersion<3&&e.objectStoreNames.contains("requests")&&e.deleteObjectStore("requests");e.createObjectStore("requests",{autoIncrement:!0,keyPath:"id"}).createIndex("queueName","queueName",{unique:!1})}}const r=["method","referrer","referrerPolicy","mode","credentials","cache","redirect","integrity","keepalive"];class c{constructor(t){"navigate"===t.mode&&(t.mode="same-origin"),this.u=t}static async fromRequest(t){const e={url:t.url,headers:{}};"GET"!==t.method&&(e.body=await t.clone().arrayBuffer());for(const[s,i]of t.headers.entries())e.headers[s]=i;for(const s of r)void 0!==t[s]&&(e[s]=t[s]);return new c(e)}toObject(){const t=Object.assign({},this.u);return t.headers=Object.assign({},this.u.headers),t.body&&(t.body=t.body.slice(0)),t}toRequest(){return new Request(this.u.url,this.u)}clone(){return new c(this.toObject())}}const h=new Set,u=t=>{const e={request:new c(t.requestData).toRequest(),timestamp:t.timestamp};return t.metadata&&(e.metadata=t.metadata),e};class o{constructor(t,{onSync:s,maxRetentionTime:i}={}){if(this.o=!1,this.q=!1,h.has(t))throw new e.WorkboxError("duplicate-queue-name",{name:t});h.add(t),this.l=t,this.m=s||this.replayRequests,this.p=i||10080,this.g=new a(this.l),this.R()}get name(){return this.l}async pushRequest(t){await this.k(t,"push")}async unshiftRequest(t){await this.k(t,"unshift")}async popRequest(){return this.D("pop")}async shiftRequest(){return this.D("shift")}async getAll(){const t=await this.g.getAll(),e=Date.now(),s=[];for(const i of t){const t=60*this.p*1e3;e-i.timestamp>t?await this.g.deleteEntry(i.id):s.push(u(i))}return s}async k({request:t,metadata:e,timestamp:s=Date.now()},i){const n={requestData:(await c.fromRequest(t.clone())).toObject(),timestamp:s};e&&(n.metadata=e),await this.g[i+"Entry"](n),this.o?this.q=!0:await this.registerSync()}async D(t){const e=Date.now(),s=await this.g[t+"Entry"]();if(s){const i=60*this.p*1e3;return e-s.timestamp>i?this.D(t):u(s)}}async replayRequests(){let t;for(;t=await this.shiftRequest();)try{await fetch(t.request.clone())}catch(s){throw await this.unshiftRequest(t),new e.WorkboxError("queue-replay-failed",{name:this.l})}}async registerSync(){if("sync"in self.registration)try{await self.registration.sync.register("workbox-background-sync:"+this.l)}catch(t){}}R(){"sync"in self.registration?self.addEventListener("sync",t=>{if(t.tag==="workbox-background-sync:"+this.l){const e=async()=>{let e;this.o=!0;try{await this.m({queue:this})}catch(t){throw e=t,e}finally{!this.q||e&&!t.lastChance||await this.registerSync(),this.o=!1,this.q=!1}};t.waitUntil(e())}}):this.m({queue:this})}static get _(){return h}}return t.BackgroundSyncPlugin=class{constructor(t,e){this.fetchDidFail=async({request:t})=>{await this.v.pushRequest({request:t})},this.v=new o(t,e)}},t.Queue=o,t}({},workbox.core._private,workbox.core._private,workbox.core._private,workbox.core._private);
+//# sourceMappingURL=workbox-background-sync.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-background-sync.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-background-sync.prod.js","sources":["../_version.js","../lib/QueueStore.js","../lib/StorableRequest.js","../Queue.js","../BackgroundSyncPlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:background-sync:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { DBWrapper } from 'workbox-core/_private/DBWrapper.js';\nimport '../_version.js';\nconst DB_VERSION = 3;\nconst DB_NAME = 'workbox-background-sync';\nconst OBJECT_STORE_NAME = 'requests';\nconst INDEXED_PROP = 'queueName';\n/**\n * A class to manage storing requests from a Queue in IndexedDB,\n * indexed by their queue name for easier access.\n *\n * @private\n */\nexport class QueueStore {\n    /**\n     * Associates this instance with a Queue instance, so entries added can be\n     * identified by their queue name.\n     *\n     * @param {string} queueName\n     * @private\n     */\n    constructor(queueName) {\n        this._queueName = queueName;\n        this._db = new DBWrapper(DB_NAME, DB_VERSION, {\n            onupgradeneeded: this._upgradeDb,\n        });\n    }\n    /**\n     * Append an entry last in the queue.\n     *\n     * @param {Object} entry\n     * @param {Object} entry.requestData\n     * @param {number} [entry.timestamp]\n     * @param {Object} [entry.metadata]\n     * @private\n     */\n    async pushEntry(entry) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(entry, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'pushEntry',\n                paramName: 'entry',\n            });\n            assert.isType(entry.requestData, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'pushEntry',\n                paramName: 'entry.requestData',\n            });\n        }\n        // Don't specify an ID since one is automatically generated.\n        delete entry.id;\n        entry.queueName = this._queueName;\n        await this._db.add(OBJECT_STORE_NAME, entry);\n    }\n    /**\n     * Prepend an entry first in the queue.\n     *\n     * @param {Object} entry\n     * @param {Object} entry.requestData\n     * @param {number} [entry.timestamp]\n     * @param {Object} [entry.metadata]\n     * @private\n     */\n    async unshiftEntry(entry) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(entry, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'unshiftEntry',\n                paramName: 'entry',\n            });\n            assert.isType(entry.requestData, 'object', {\n                moduleName: 'workbox-background-sync',\n                className: 'QueueStore',\n                funcName: 'unshiftEntry',\n                paramName: 'entry.requestData',\n            });\n        }\n        const [firstEntry] = await this._db.getAllMatching(OBJECT_STORE_NAME, {\n            count: 1,\n        });\n        if (firstEntry) {\n            // Pick an ID one less than the lowest ID in the object store.\n            entry.id = firstEntry.id - 1;\n        }\n        else {\n            // Otherwise let the auto-incrementor assign the ID.\n            delete entry.id;\n        }\n        entry.queueName = this._queueName;\n        await this._db.add(OBJECT_STORE_NAME, entry);\n    }\n    /**\n     * Removes and returns the last entry in the queue matching the `queueName`.\n     *\n     * @return {Promise<Object>}\n     * @private\n     */\n    async popEntry() {\n        return this._removeEntry({ direction: 'prev' });\n    }\n    /**\n     * Removes and returns the first entry in the queue matching the `queueName`.\n     *\n     * @return {Promise<Object>}\n     * @private\n     */\n    async shiftEntry() {\n        return this._removeEntry({ direction: 'next' });\n    }\n    /**\n     * Returns all entries in the store matching the `queueName`.\n     *\n     * @param {Object} options See {@link module:workbox-background-sync.Queue~getAll}\n     * @return {Promise<Array<Object>>}\n     * @private\n     */\n    async getAll() {\n        return await this._db.getAllMatching(OBJECT_STORE_NAME, {\n            index: INDEXED_PROP,\n            query: IDBKeyRange.only(this._queueName),\n        });\n    }\n    /**\n     * Deletes the entry for the given ID.\n     *\n     * WARNING: this method does not ensure the deleted enry belongs to this\n     * queue (i.e. matches the `queueName`). But this limitation is acceptable\n     * as this class is not publicly exposed. An additional check would make\n     * this method slower than Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-broadcast-update.dev.js

@@ -0,0 +1,288 @@
+this.workbox = this.workbox || {};
+this.workbox.broadcastUpdate = (function (exports, assert_js, timeout_js, resultingClientExists_js, logger_js, WorkboxError_js, dontWaitFor_js) {
+    'use strict';
+
+    try {
+      self['workbox:broadcast-update:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Given two `Response's`, compares several header values to see if they are
+     * the same or not.
+     *
+     * @param {Response} firstResponse
+     * @param {Response} secondResponse
+     * @param {Array<string>} headersToCheck
+     * @return {boolean}
+     *
+     * @memberof module:workbox-broadcast-update
+     */
+
+    const responsesAreSame = (firstResponse, secondResponse, headersToCheck) => {
+      {
+        if (!(firstResponse instanceof Response && secondResponse instanceof Response)) {
+          throw new WorkboxError_js.WorkboxError('invalid-responses-are-same-args');
+        }
+      }
+
+      const atLeastOneHeaderAvailable = headersToCheck.some(header => {
+        return firstResponse.headers.has(header) && secondResponse.headers.has(header);
+      });
+
+      if (!atLeastOneHeaderAvailable) {
+        {
+          logger_js.logger.warn(`Unable to determine where the response has been updated ` + `because none of the headers that would be checked are present.`);
+          logger_js.logger.debug(`Attempting to compare the following: `, firstResponse, secondResponse, headersToCheck);
+        } // Just return true, indicating the that responses are the same, since we
+        // can't determine otherwise.
+
+
+        return true;
+      }
+
+      return headersToCheck.every(header => {
+        const headerStateComparison = firstResponse.headers.has(header) === secondResponse.headers.has(header);
+        const headerValueComparison = firstResponse.headers.get(header) === secondResponse.headers.get(header);
+        return headerStateComparison && headerValueComparison;
+      });
+    };
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const CACHE_UPDATED_MESSAGE_TYPE = 'CACHE_UPDATED';
+    const CACHE_UPDATED_MESSAGE_META = 'workbox-broadcast-update';
+    const DEFAULT_HEADERS_TO_CHECK = ['content-length', 'etag', 'last-modified'];
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    // TODO(philipwalton): remove once this Safari bug fix has been released.
+    // https://bugs.webkit.org/show_bug.cgi?id=201169
+
+    const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
+    /**
+     * Generates the default payload used in update messages. By default the
+     * payload includes the `cacheName` and `updatedURL` fields.
+     *
+     * @return Object
+     * @private
+     */
+
+    function defaultPayloadGenerator(data) {
+      return {
+        cacheName: data.cacheName,
+        updatedURL: data.request.url
+      };
+    }
+    /**
+     * Uses the `postMessage()` API to inform any open windows/tabs when a cached
+     * response has been updated.
+     *
+     * For efficiency's sake, the underlying response bodies are not compared;
+     * only specific response headers are checked.
+     *
+     * @memberof module:workbox-broadcast-update
+     */
+
+
+    class BroadcastCacheUpdate {
+      /**
+       * Construct a BroadcastCacheUpdate instance with a specific `channelName` to
+       * broadcast messages on
+       *
+       * @param {Object} options
+       * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]
+       *     A list of headers that will be used to determine whether the responses
+       *     differ.
+       * @param {string} [options.generatePayload] A function whose return value
+       *     will be used as the `payload` field in any cache update messages sent
+       *     to the window clients.
+       */
+      constructor({
+        headersToCheck,
+        generatePayload
+      } = {}) {
+        this._headersToCheck = headersToCheck || DEFAULT_HEADERS_TO_CHECK;
+        this._generatePayload = generatePayload || defaultPayloadGenerator;
+      }
+      /**
+       * Compares two [Responses](https://developer.mozilla.org/en-US/docs/Web/API/Response)
+       * and sends a message (via `postMessage()`) to all window clients if the
+       * responses differ (note: neither of the Responses can be
+       * {@link http://stackoverflow.com/questions/39109789|opaque}).
+       *
+       * The message that's posted has the following format (where `payload` can
+       * be customized via the `generatePayload` option the instance is created
+       * with):
+       *
+       * ```
+       * {
+       *   type: 'CACHE_UPDATED',
+       *   meta: 'workbox-broadcast-update',
+       *   payload: {
+       *     cacheName: 'the-cache-name',
+       *     updatedURL: 'https://example.com/'
+       *   }
+       * }
+       * ```
+       *
+       * @param {Object} options
+       * @param {Response} [options.oldResponse] Cached response to compare.
+       * @param {Response} options.newResponse Possibly updated response to compare.
+       * @param {Request} options.request The request.
+       * @param {string} options.cacheName Name of the cache the responses belong
+       *     to. This is included in the broadcast message.
+       * @param {Event} [options.event] event An optional event that triggered
+       *     this possible cache update.
+       * @return {Promise} Resolves once the update is sent.
+       */
+
+
+      async notifyIfUpdated(options) {
+        {
+          assert_js.assert.isType(options.cacheName, 'string', {
+            moduleName: 'workbox-broadcast-update',
+            className: 'BroadcastCacheUpdate',
+            funcName: 'notifyIfUpdated',
+            paramName: 'cacheName'
+          });
+          assert_js.assert.isInstance(options.newResponse, Response, {
+            moduleName: 'workbox-broadcast-update',
+            className: 'BroadcastCacheUpdate',
+            funcName: 'notifyIfUpdated',
+            paramName: 'newResponse'
+          });
+          assert_js.assert.isInstance(options.request, Request, {
+            moduleName: 'workbox-broadcast-update',
+            className: 'BroadcastCacheUpdate',
+            funcName: 'notifyIfUpdated',
+            paramName: 'request'
+          });
+        } // Without two responses there is nothing to compare.
+
+
+        if (!options.oldResponse) {
+          return;
+        }
+
+        if (!responsesAreSame(options.oldResponse, options.newResponse, this._headersToCheck)) {
+          {
+            logger_js.logger.log(`Newer response found (and cached) for:`, options.request.url);
+          }
+
+          const messageData = {
+            type: CACHE_UPDATED_MESSAGE_TYPE,
+            meta: CACHE_UPDATED_MESSAGE_META,
+            payload: this._generatePayload(options)
+          }; // For navigation requests, wait until the new window client exists
+          // before sending the message
+
+          if (options.request.mode === 'navigate') {
+            let resultingClientId;
+
+            if (options.event instanceof FetchEvent) {
+              resultingClientId = options.event.resultingClientId;
+            }
+
+            const resultingWin = await resultingClientExists_js.resultingClientExists(resultingClientId); // Safari does not currently implement postMessage buffering and
+            // there's no good way to feature detect that, so to increase the
+            // chances of the message being delivered in Safari, we add a timeout.
+            // We also do this if `resultingClientExists()` didn't return a client,
+            // which means it timed out, so it's worth waiting a bit longer.
+
+            if (!resultingWin || isSafari) {
+              // 3500 is chosen because (according to CrUX data) 80% of mobile
+              // websites hit the DOMContentLoaded event in less than 3.5 seconds.
+              // And presumably sites implementing service worker are on the
+              // higher end of the performance spectrum.
+              await timeout_js.timeout(3500);
+            }
+          }
+
+          const windows = await self.clients.matchAll({
+            type: 'window'
+          });
+
+          for (const win of windows) {
+            win.postMessage(messageData);
+          }
+        }
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * This plugin will automatically broadcast a message whenever a cached response
+     * is updated.
+     *
+     * @memberof module:workbox-broadcast-update
+     */
+
+    class BroadcastUpdatePlugin {
+      /**
+       * Construct a BroadcastCacheUpdate instance with the passed options and
+       * calls its [`notifyIfUpdated()`]{@link module:workbox-broadcast-update.BroadcastCacheUpdate~notifyIfUpdated}
+       * method whenever the plugin's `cacheDidUpdate` callback is invoked.
+       *
+       * @param {Object} options
+       * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]
+       *     A list of headers that will be used to determine whether the responses
+       *     differ.
+       * @param {string} [options.generatePayload] A function whose return value
+       *     will be used as the `payload` field in any cache update messages sent
+       *     to the window clients.
+       */
+      constructor(options) {
+        /**
+         * A "lifecycle" callback that will be triggered automatically by the
+         * `workbox-sw` and `workbox-runtime-caching` handlers when an entry is
+         * added to a cache.
+         *
+         * @private
+         * @param {Object} options The input object to this function.
+         * @param {string} options.cacheName Name of the cache being updated.
+         * @param {Response} [options.oldResponse] The previous cached value, if any.
+         * @param {Response} options.newResponse The new value in the cache.
+         * @param {Request} options.request The request that triggered the update.
+         * @param {Request} [options.event] The event that triggered the update.
+         */
+        this.cacheDidUpdate = async options => {
+          dontWaitFor_js.dontWaitFor(this._broadcastUpdate.notifyIfUpdated(options));
+        };
+
+        this._broadcastUpdate = new BroadcastCacheUpdate(options);
+      }
+
+    }
+
+    exports.BroadcastCacheUpdate = BroadcastCacheUpdate;
+    exports.BroadcastUpdatePlugin = BroadcastUpdatePlugin;
+    exports.responsesAreSame = responsesAreSame;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
+//# sourceMappingURL=workbox-broadcast-update.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-broadcast-update.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-broadcast-update.dev.js","sources":["../_version.js","../responsesAreSame.js","../utils/constants.js","../BroadcastCacheUpdate.js","../BroadcastUpdatePlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:broadcast-update:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport './_version.js';\n/**\n * Given two `Response's`, compares several header values to see if they are\n * the same or not.\n *\n * @param {Response} firstResponse\n * @param {Response} secondResponse\n * @param {Array<string>} headersToCheck\n * @return {boolean}\n *\n * @memberof module:workbox-broadcast-update\n */\nconst responsesAreSame = (firstResponse, secondResponse, headersToCheck) => {\n    if (process.env.NODE_ENV !== 'production') {\n        if (!(firstResponse instanceof Response &&\n            secondResponse instanceof Response)) {\n            throw new WorkboxError('invalid-responses-are-same-args');\n        }\n    }\n    const atLeastOneHeaderAvailable = headersToCheck.some((header) => {\n        return firstResponse.headers.has(header) &&\n            secondResponse.headers.has(header);\n    });\n    if (!atLeastOneHeaderAvailable) {\n        if (process.env.NODE_ENV !== 'production') {\n            logger.warn(`Unable to determine where the response has been updated ` +\n                `because none of the headers that would be checked are present.`);\n            logger.debug(`Attempting to compare the following: `, firstResponse, secondResponse, headersToCheck);\n        }\n        // Just return true, indicating the that responses are the same, since we\n        // can't determine otherwise.\n        return true;\n    }\n    return headersToCheck.every((header) => {\n        const headerStateComparison = firstResponse.headers.has(header) ===\n            secondResponse.headers.has(header);\n        const headerValueComparison = firstResponse.headers.get(header) ===\n            secondResponse.headers.get(header);\n        return headerStateComparison && headerValueComparison;\n    });\n};\nexport { responsesAreSame };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nexport const CACHE_UPDATED_MESSAGE_TYPE = 'CACHE_UPDATED';\nexport const CACHE_UPDATED_MESSAGE_META = 'workbox-broadcast-update';\nexport const DEFAULT_HEADERS_TO_CHECK = [\n    'content-length',\n    'etag',\n    'last-modified',\n];\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { timeout } from 'workbox-core/_private/timeout.js';\nimport { resultingClientExists } from 'workbox-core/_private/resultingClientExists.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { responsesAreSame } from './responsesAreSame.js';\nimport { CACHE_UPDATED_MESSAGE_TYPE, CACHE_UPDATED_MESSAGE_META, DEFAULT_HEADERS_TO_CHECK } from './utils/constants.js';\nimport './_version.js';\n// UA-sniff Safari: https://stackoverflow.com/questions/7944460/detect-safari-browser\n// TODO(philipwalton): remove once this Safari bug fix has been released.\n// https://bugs.webkit.org/show_bug.cgi?id=201169\nconst isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);\n/**\n * Generates the default payload used in update messages. By default the\n * payload includes the `cacheName` and `updatedURL` fields.\n *\n * @return Object\n * @private\n */\nfunction defaultPayloadGenerator(data) {\n    return {\n        cacheName: data.cacheName,\n        updatedURL: data.request.url,\n    };\n}\n/**\n * Uses the `postMessage()` API to inform any open windows/tabs when a cached\n * response has been updated.\n *\n * For efficiency's sake, the underlying response bodies are not compared;\n * only specific response headers are checked.\n *\n * @memberof module:workbox-broadcast-update\n */\nclass BroadcastCacheUpdate {\n    /**\n     * Construct a BroadcastCacheUpdate instance with a specific `channelName` to\n     * broadcast messages on\n     *\n     * @param {Object} options\n     * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]\n     *     A list of headers that will be used to determine whether the responses\n     *     differ.\n     * @param {string} [options.generatePayload] A function whose return value\n     *     will be used as the `payload` field in any cache update messaLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-broadcast-update.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.broadcastUpdate=function(t,a,o,s){"use strict";try{self["workbox:broadcast-update:5.1.4"]&&_()}catch(t){}const e=(t,a,o)=>!o.some(o=>t.headers.has(o)&&a.headers.has(o))||o.every(o=>{const s=t.headers.has(o)===a.headers.has(o),e=t.headers.get(o)===a.headers.get(o);return s&&e}),n=["content-length","etag","last-modified"],i=/^((?!chrome|android).)*safari/i.test(navigator.userAgent);function c(t){return{cacheName:t.cacheName,updatedURL:t.request.url}}class r{constructor({headersToCheck:t,generatePayload:a}={}){this.t=t||n,this.o=a||c}async notifyIfUpdated(t){if(t.oldResponse&&!e(t.oldResponse,t.newResponse,this.t)){const s={type:"CACHE_UPDATED",meta:"workbox-broadcast-update",payload:this.o(t)};if("navigate"===t.request.mode){let s;t.event instanceof FetchEvent&&(s=t.event.resultingClientId);await o.resultingClientExists(s)&&!i||await a.timeout(3500)}const e=await self.clients.matchAll({type:"window"});for(const t of e)t.postMessage(s)}}}return t.BroadcastCacheUpdate=r,t.BroadcastUpdatePlugin=class{constructor(t){this.cacheDidUpdate=async t=>{s.dontWaitFor(this.s.notifyIfUpdated(t))},this.s=new r(t)}},t.responsesAreSame=e,t}({},workbox.core._private,workbox.core._private,workbox.core._private);
+//# sourceMappingURL=workbox-broadcast-update.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-broadcast-update.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-broadcast-update.prod.js","sources":["../_version.js","../responsesAreSame.js","../utils/constants.js","../BroadcastCacheUpdate.js","../BroadcastUpdatePlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:broadcast-update:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport './_version.js';\n/**\n * Given two `Response's`, compares several header values to see if they are\n * the same or not.\n *\n * @param {Response} firstResponse\n * @param {Response} secondResponse\n * @param {Array<string>} headersToCheck\n * @return {boolean}\n *\n * @memberof module:workbox-broadcast-update\n */\nconst responsesAreSame = (firstResponse, secondResponse, headersToCheck) => {\n    if (process.env.NODE_ENV !== 'production') {\n        if (!(firstResponse instanceof Response &&\n            secondResponse instanceof Response)) {\n            throw new WorkboxError('invalid-responses-are-same-args');\n        }\n    }\n    const atLeastOneHeaderAvailable = headersToCheck.some((header) => {\n        return firstResponse.headers.has(header) &&\n            secondResponse.headers.has(header);\n    });\n    if (!atLeastOneHeaderAvailable) {\n        if (process.env.NODE_ENV !== 'production') {\n            logger.warn(`Unable to determine where the response has been updated ` +\n                `because none of the headers that would be checked are present.`);\n            logger.debug(`Attempting to compare the following: `, firstResponse, secondResponse, headersToCheck);\n        }\n        // Just return true, indicating the that responses are the same, since we\n        // can't determine otherwise.\n        return true;\n    }\n    return headersToCheck.every((header) => {\n        const headerStateComparison = firstResponse.headers.has(header) ===\n            secondResponse.headers.has(header);\n        const headerValueComparison = firstResponse.headers.get(header) ===\n            secondResponse.headers.get(header);\n        return headerStateComparison && headerValueComparison;\n    });\n};\nexport { responsesAreSame };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nexport const CACHE_UPDATED_MESSAGE_TYPE = 'CACHE_UPDATED';\nexport const CACHE_UPDATED_MESSAGE_META = 'workbox-broadcast-update';\nexport const DEFAULT_HEADERS_TO_CHECK = [\n    'content-length',\n    'etag',\n    'last-modified',\n];\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { timeout } from 'workbox-core/_private/timeout.js';\nimport { resultingClientExists } from 'workbox-core/_private/resultingClientExists.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { responsesAreSame } from './responsesAreSame.js';\nimport { CACHE_UPDATED_MESSAGE_TYPE, CACHE_UPDATED_MESSAGE_META, DEFAULT_HEADERS_TO_CHECK } from './utils/constants.js';\nimport './_version.js';\n// UA-sniff Safari: https://stackoverflow.com/questions/7944460/detect-safari-browser\n// TODO(philipwalton): remove once this Safari bug fix has been released.\n// https://bugs.webkit.org/show_bug.cgi?id=201169\nconst isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);\n/**\n * Generates the default payload used in update messages. By default the\n * payload includes the `cacheName` and `updatedURL` fields.\n *\n * @return Object\n * @private\n */\nfunction defaultPayloadGenerator(data) {\n    return {\n        cacheName: data.cacheName,\n        updatedURL: data.request.url,\n    };\n}\n/**\n * Uses the `postMessage()` API to inform any open windows/tabs when a cached\n * response has been updated.\n *\n * For efficiency's sake, the underlying response bodies are not compared;\n * only specific response headers are checked.\n *\n * @memberof module:workbox-broadcast-update\n */\nclass BroadcastCacheUpdate {\n    /**\n     * Construct a BroadcastCacheUpdate instance with a specific `channelName` to\n     * broadcast messages on\n     *\n     * @param {Object} options\n     * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]\n     *     A list of headers that will be used to determine whether the responses\n     *     differ.\n     * @param {string} [options.generatePayload] A function whose return value\n     *     will be used as the `payload` field in any cache update messLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-cacheable-response.dev.js

@@ -0,0 +1,191 @@
+this.workbox = this.workbox || {};
+this.workbox.cacheableResponse = (function (exports, assert_js, WorkboxError_js, getFriendlyURL_js, logger_js) {
+    'use strict';
+
+    try {
+      self['workbox:cacheable-response:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * This class allows you to set up rules determining what
+     * status codes and/or headers need to be present in order for a
+     * [`Response`](https://developer.mozilla.org/en-US/docs/Web/API/Response)
+     * to be considered cacheable.
+     *
+     * @memberof module:workbox-cacheable-response
+     */
+
+    class CacheableResponse {
+      /**
+       * To construct a new CacheableResponse instance you must provide at least
+       * one of the `config` properties.
+       *
+       * If both `statuses` and `headers` are specified, then both conditions must
+       * be met for the `Response` to be considered cacheable.
+       *
+       * @param {Object} config
+       * @param {Array<number>} [config.statuses] One or more status codes that a
+       * `Response` can have and be considered cacheable.
+       * @param {Object<string,string>} [config.headers] A mapping of header names
+       * and expected values that a `Response` can have and be considered cacheable.
+       * If multiple headers are provided, only one needs to be present.
+       */
+      constructor(config = {}) {
+        {
+          if (!(config.statuses || config.headers)) {
+            throw new WorkboxError_js.WorkboxError('statuses-or-headers-required', {
+              moduleName: 'workbox-cacheable-response',
+              className: 'CacheableResponse',
+              funcName: 'constructor'
+            });
+          }
+
+          if (config.statuses) {
+            assert_js.assert.isArray(config.statuses, {
+              moduleName: 'workbox-cacheable-response',
+              className: 'CacheableResponse',
+              funcName: 'constructor',
+              paramName: 'config.statuses'
+            });
+          }
+
+          if (config.headers) {
+            assert_js.assert.isType(config.headers, 'object', {
+              moduleName: 'workbox-cacheable-response',
+              className: 'CacheableResponse',
+              funcName: 'constructor',
+              paramName: 'config.headers'
+            });
+          }
+        }
+
+        this._statuses = config.statuses;
+        this._headers = config.headers;
+      }
+      /**
+       * Checks a response to see whether it's cacheable or not, based on this
+       * object's configuration.
+       *
+       * @param {Response} response The response whose cacheability is being
+       * checked.
+       * @return {boolean} `true` if the `Response` is cacheable, and `false`
+       * otherwise.
+       */
+
+
+      isResponseCacheable(response) {
+        {
+          assert_js.assert.isInstance(response, Response, {
+            moduleName: 'workbox-cacheable-response',
+            className: 'CacheableResponse',
+            funcName: 'isResponseCacheable',
+            paramName: 'response'
+          });
+        }
+
+        let cacheable = true;
+
+        if (this._statuses) {
+          cacheable = this._statuses.includes(response.status);
+        }
+
+        if (this._headers && cacheable) {
+          cacheable = Object.keys(this._headers).some(headerName => {
+            return response.headers.get(headerName) === this._headers[headerName];
+          });
+        }
+
+        {
+          if (!cacheable) {
+            logger_js.logger.groupCollapsed(`The request for ` + `'${getFriendlyURL_js.getFriendlyURL(response.url)}' returned a response that does ` + `not meet the criteria for being cached.`);
+            logger_js.logger.groupCollapsed(`View cacheability criteria here.`);
+            logger_js.logger.log(`Cacheable statuses: ` + JSON.stringify(this._statuses));
+            logger_js.logger.log(`Cacheable headers: ` + JSON.stringify(this._headers, null, 2));
+            logger_js.logger.groupEnd();
+            const logFriendlyHeaders = {};
+            response.headers.forEach((value, key) => {
+              logFriendlyHeaders[key] = value;
+            });
+            logger_js.logger.groupCollapsed(`View response status and headers here.`);
+            logger_js.logger.log(`Response status: ` + response.status);
+            logger_js.logger.log(`Response headers: ` + JSON.stringify(logFriendlyHeaders, null, 2));
+            logger_js.logger.groupEnd();
+            logger_js.logger.groupCollapsed(`View full response details here.`);
+            logger_js.logger.log(response.headers);
+            logger_js.logger.log(response);
+            logger_js.logger.groupEnd();
+            logger_js.logger.groupEnd();
+          }
+        }
+
+        return cacheable;
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * A class implementing the `cacheWillUpdate` lifecycle callback. This makes it
+     * easier to add in cacheability checks to requests made via Workbox's built-in
+     * strategies.
+     *
+     * @memberof module:workbox-cacheable-response
+     */
+
+    class CacheableResponsePlugin {
+      /**
+       * To construct a new CacheableResponsePlugin instance you must provide at
+       * least one of the `config` properties.
+       *
+       * If both `statuses` and `headers` are specified, then both conditions must
+       * be met for the `Response` to be considered cacheable.
+       *
+       * @param {Object} config
+       * @param {Array<number>} [config.statuses] One or more status codes that a
+       * `Response` can have and be considered cacheable.
+       * @param {Object<string,string>} [config.headers] A mapping of header names
+       * and expected values that a `Response` can have and be considered cacheable.
+       * If multiple headers are provided, only one needs to be present.
+       */
+      constructor(config) {
+        /**
+         * @param {Object} options
+         * @param {Response} options.response
+         * @return {Response|null}
+         * @private
+         */
+        this.cacheWillUpdate = async ({
+          response
+        }) => {
+          if (this._cacheableResponse.isResponseCacheable(response)) {
+            return response;
+          }
+
+          return null;
+        };
+
+        this._cacheableResponse = new CacheableResponse(config);
+      }
+
+    }
+
+    exports.CacheableResponse = CacheableResponse;
+    exports.CacheableResponsePlugin = CacheableResponsePlugin;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
+//# sourceMappingURL=workbox-cacheable-response.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-cacheable-response.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-cacheable-response.dev.js","sources":["../_version.js","../CacheableResponse.js","../CacheableResponsePlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:cacheable-response:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport './_version.js';\n/**\n * This class allows you to set up rules determining what\n * status codes and/or headers need to be present in order for a\n * [`Response`](https://developer.mozilla.org/en-US/docs/Web/API/Response)\n * to be considered cacheable.\n *\n * @memberof module:workbox-cacheable-response\n */\nclass CacheableResponse {\n    /**\n     * To construct a new CacheableResponse instance you must provide at least\n     * one of the `config` properties.\n     *\n     * If both `statuses` and `headers` are specified, then both conditions must\n     * be met for the `Response` to be considered cacheable.\n     *\n     * @param {Object} config\n     * @param {Array<number>} [config.statuses] One or more status codes that a\n     * `Response` can have and be considered cacheable.\n     * @param {Object<string,string>} [config.headers] A mapping of header names\n     * and expected values that a `Response` can have and be considered cacheable.\n     * If multiple headers are provided, only one needs to be present.\n     */\n    constructor(config = {}) {\n        if (process.env.NODE_ENV !== 'production') {\n            if (!(config.statuses || config.headers)) {\n                throw new WorkboxError('statuses-or-headers-required', {\n                    moduleName: 'workbox-cacheable-response',\n                    className: 'CacheableResponse',\n                    funcName: 'constructor',\n                });\n            }\n            if (config.statuses) {\n                assert.isArray(config.statuses, {\n                    moduleName: 'workbox-cacheable-response',\n                    className: 'CacheableResponse',\n                    funcName: 'constructor',\n                    paramName: 'config.statuses',\n                });\n            }\n            if (config.headers) {\n                assert.isType(config.headers, 'object', {\n                    moduleName: 'workbox-cacheable-response',\n                    className: 'CacheableResponse',\n                    funcName: 'constructor',\n                    paramName: 'config.headers',\n                });\n            }\n        }\n        this._statuses = config.statuses;\n        this._headers = config.headers;\n    }\n    /**\n     * Checks a response to see whether it's cacheable or not, based on this\n     * object's configuration.\n     *\n     * @param {Response} response The response whose cacheability is being\n     * checked.\n     * @return {boolean} `true` if the `Response` is cacheable, and `false`\n     * otherwise.\n     */\n    isResponseCacheable(response) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isInstance(response, Response, {\n                moduleName: 'workbox-cacheable-response',\n                className: 'CacheableResponse',\n                funcName: 'isResponseCacheable',\n                paramName: 'response',\n            });\n        }\n        let cacheable = true;\n        if (this._statuses) {\n            cacheable = this._statuses.includes(response.status);\n        }\n        if (this._headers && cacheable) {\n            cacheable = Object.keys(this._headers).some((headerName) => {\n                return response.headers.get(headerName) === this._headers[headerName];\n            });\n        }\n        if (process.env.NODE_ENV !== 'production') {\n            if (!cacheable) {\n                logger.groupCollapsed(`The request for ` +\n                    `'${getFriendlyURL(response.url)}' returned a response that does ` +\n                    `not meet the criteria for being cached.`);\n                logger.groupCollapsed(`View cacheability criteria here.`);\n                logger.log(`Cacheable statuses: ` +\n                    JSON.stringify(this._statuses));\n                logger.log(`Cacheable headers: ` +\n                    JSON.stringify(this._headers, null, 2));\n                logger.groupEnd();\n                const logFriendlyHeaders = {};\n                response.headers.forEach((value, key) => {\n                    logFriendlyHeaders[key] = value;\n                });\n                logger.groupCollapsed(`View response status and headers here.`);\n                logger.log(`Response status: ` + responsLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-cacheable-response.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.cacheableResponse=function(s){"use strict";try{self["workbox:cacheable-response:5.1.4"]&&_()}catch(s){}class t{constructor(s={}){this.s=s.statuses,this.t=s.headers}isResponseCacheable(s){let t=!0;return this.s&&(t=this.s.includes(s.status)),this.t&&t&&(t=Object.keys(this.t).some(t=>s.headers.get(t)===this.t[t])),t}}return s.CacheableResponse=t,s.CacheableResponsePlugin=class{constructor(s){this.cacheWillUpdate=async({response:s})=>this.i.isResponseCacheable(s)?s:null,this.i=new t(s)}},s}({});
+//# sourceMappingURL=workbox-cacheable-response.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-cacheable-response.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-cacheable-response.prod.js","sources":["../_version.js","../CacheableResponse.js","../CacheableResponsePlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:cacheable-response:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport './_version.js';\n/**\n * This class allows you to set up rules determining what\n * status codes and/or headers need to be present in order for a\n * [`Response`](https://developer.mozilla.org/en-US/docs/Web/API/Response)\n * to be considered cacheable.\n *\n * @memberof module:workbox-cacheable-response\n */\nclass CacheableResponse {\n    /**\n     * To construct a new CacheableResponse instance you must provide at least\n     * one of the `config` properties.\n     *\n     * If both `statuses` and `headers` are specified, then both conditions must\n     * be met for the `Response` to be considered cacheable.\n     *\n     * @param {Object} config\n     * @param {Array<number>} [config.statuses] One or more status codes that a\n     * `Response` can have and be considered cacheable.\n     * @param {Object<string,string>} [config.headers] A mapping of header names\n     * and expected values that a `Response` can have and be considered cacheable.\n     * If multiple headers are provided, only one needs to be present.\n     */\n    constructor(config = {}) {\n        if (process.env.NODE_ENV !== 'production') {\n            if (!(config.statuses || config.headers)) {\n                throw new WorkboxError('statuses-or-headers-required', {\n                    moduleName: 'workbox-cacheable-response',\n                    className: 'CacheableResponse',\n                    funcName: 'constructor',\n                });\n            }\n            if (config.statuses) {\n                assert.isArray(config.statuses, {\n                    moduleName: 'workbox-cacheable-response',\n                    className: 'CacheableResponse',\n                    funcName: 'constructor',\n                    paramName: 'config.statuses',\n                });\n            }\n            if (config.headers) {\n                assert.isType(config.headers, 'object', {\n                    moduleName: 'workbox-cacheable-response',\n                    className: 'CacheableResponse',\n                    funcName: 'constructor',\n                    paramName: 'config.headers',\n                });\n            }\n        }\n        this._statuses = config.statuses;\n        this._headers = config.headers;\n    }\n    /**\n     * Checks a response to see whether it's cacheable or not, based on this\n     * object's configuration.\n     *\n     * @param {Response} response The response whose cacheability is being\n     * checked.\n     * @return {boolean} `true` if the `Response` is cacheable, and `false`\n     * otherwise.\n     */\n    isResponseCacheable(response) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isInstance(response, Response, {\n                moduleName: 'workbox-cacheable-response',\n                className: 'CacheableResponse',\n                funcName: 'isResponseCacheable',\n                paramName: 'response',\n            });\n        }\n        let cacheable = true;\n        if (this._statuses) {\n            cacheable = this._statuses.includes(response.status);\n        }\n        if (this._headers && cacheable) {\n            cacheable = Object.keys(this._headers).some((headerName) => {\n                return response.headers.get(headerName) === this._headers[headerName];\n            });\n        }\n        if (process.env.NODE_ENV !== 'production') {\n            if (!cacheable) {\n                logger.groupCollapsed(`The request for ` +\n                    `'${getFriendlyURL(response.url)}' returned a response that does ` +\n                    `not meet the criteria for being cached.`);\n                logger.groupCollapsed(`View cacheability criteria here.`);\n                logger.log(`Cacheable statuses: ` +\n                    JSON.stringify(this._statuses));\n                logger.log(`Cacheable headers: ` +\n                    JSON.stringify(this._headers, null, 2));\n                logger.groupEnd();\n                const logFriendlyHeaders = {};\n                response.headers.forEach((value, key) => {\n                    logFriendlyHeaders[key] = value;\n                });\n                logger.groupCollapsed(`View response status and headers here.`);\n                logger.log(`Response status: ` + responLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-core.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-core.dev.js","sources":["../_version.js","../_private/logger.js","../models/messages/messages.js","../models/messages/messageGenerator.js","../_private/WorkboxError.js","../_private/assert.js","../models/quotaErrorCallbacks.js","../registerQuotaErrorCallback.js","../_private/cacheNames.js","../_private/executeQuotaErrorCallbacks.js","../_private/getFriendlyURL.js","../utils/pluginUtils.js","../_private/cacheWrapper.js","../_private/canConstructReadableStream.js","../_private/canConstructResponseFromBodyStream.js","../_private/dontWaitFor.js","../_private/DBWrapper.js","../_private/Deferred.js","../_private/deleteDatabase.js","../_private/fetchWrapper.js","../_private/timeout.js","../_private/resultingClientExists.js","../_private.js","../cacheNames.js","../copyResponse.js","../clientsClaim.js","../setCacheNameDetails.js","../skipWaiting.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:core:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2019 Google LLC\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nconst logger = (process.env.NODE_ENV === 'production' ? null : (() => {\n    // Don't overwrite this value if it's already set.\n    // See https://github.com/GoogleChrome/workbox/pull/2284#issuecomment-560470923\n    if (!('__WB_DISABLE_DEV_LOGS' in self)) {\n        self.__WB_DISABLE_DEV_LOGS = false;\n    }\n    let inGroup = false;\n    const methodToColorMap = {\n        debug: `#7f8c8d`,\n        log: `#2ecc71`,\n        warn: `#f39c12`,\n        error: `#c0392b`,\n        groupCollapsed: `#3498db`,\n        groupEnd: null,\n    };\n    const print = function (method, args) {\n        if (self.__WB_DISABLE_DEV_LOGS) {\n            return;\n        }\n        if (method === 'groupCollapsed') {\n            // Safari doesn't print all console.groupCollapsed() arguments:\n            // https://bugs.webkit.org/show_bug.cgi?id=182754\n            if (/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {\n                console[method](...args);\n                return;\n            }\n        }\n        const styles = [\n            `background: ${methodToColorMap[method]}`,\n            `border-radius: 0.5em`,\n            `color: white`,\n            `font-weight: bold`,\n            `padding: 2px 0.5em`,\n        ];\n        // When in a group, the workbox prefix is not displayed.\n        const logPrefix = inGroup ? [] : ['%cworkbox', styles.join(';')];\n        console[method](...logPrefix, ...args);\n        if (method === 'groupCollapsed') {\n            inGroup = true;\n        }\n        if (method === 'groupEnd') {\n            inGroup = false;\n        }\n    };\n    const api = {};\n    const loggerMethods = Object.keys(methodToColorMap);\n    for (const key of loggerMethods) {\n        const method = key;\n        api[method] = (...args) => {\n            print(method, args);\n        };\n    }\n    return api;\n})());\nexport { logger };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../../_version.js';\nexport const messages = {\n    'invalid-value': ({ paramName, validValueDescription, value }) => {\n        if (!paramName || !validValueDescription) {\n            throw new Error(`Unexpected input to 'invalid-value' error.`);\n        }\n        return `The '${paramName}' parameter was given a value with an ` +\n            `unexpected value. ${validValueDescription} Received a value of ` +\n            `${JSON.stringify(value)}.`;\n    },\n    'not-an-array': ({ moduleName, className, funcName, paramName }) => {\n        if (!moduleName || !className || !funcName || !paramName) {\n            throw new Error(`Unexpected input to 'not-an-array' error.`);\n        }\n        return `The parameter '${paramName}' passed into ` +\n            `'${moduleName}.${className}.${funcName}()' must be an array.`;\n    },\n    'incorrect-type': ({ expectedType, paramName, moduleName, className, funcName }) => {\n        if (!expectedType || !paramName || !moduleName || !funcName) {\n            throw new Error(`Unexpected input to 'incorrect-type' error.`);\n        }\n        return `The parameter '${paramName}' passed into ` +\n            `'${moduleName}.${className ? (className + '.') : ''}` +\n            `${funcName}()' must be of type ${expectedType}.`;\n    },\n    'incorrect-class': ({ expectedClass, paramName, moduleName, className, funcName, isReturnValueProblem }) => {\n        if (!expectedClass || !moduleName || !funcName) {\n            throw new Error(`Unexpected input to 'incorrect-class' error.`);\n        }\n        if (isReturnValueProblem) {\n            return `The return value from ` +\n                `'${moduleName}.${classNaLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-core.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.core=function(e){"use strict";try{self["workbox:core:5.1.4"]&&_()}catch(e){}const t=(e,...t)=>{let n=e;return t.length>0&&(n+=" :: "+JSON.stringify(t)),n};class n extends Error{constructor(e,n){super(t(e,n)),this.name=e,this.details=n}}const s=new Set;const r={googleAnalytics:"googleAnalytics",precache:"precache-v2",prefix:"workbox",runtime:"runtime",suffix:"undefined"!=typeof registration?registration.scope:""},i=e=>[r.prefix,e,r.suffix].filter(e=>e&&e.length>0).join("-"),o={updateDetails:e=>{(e=>{for(const t of Object.keys(r))e(t)})(t=>{"string"==typeof e[t]&&(r[t]=e[t])})},getGoogleAnalyticsName:e=>e||i(r.googleAnalytics),getPrecacheName:e=>e||i(r.precache),getPrefix:()=>r.prefix,getRuntimeName:e=>e||i(r.runtime),getSuffix:()=>r.suffix};async function a(){for(const e of s)await e()}const c=e=>new URL(String(e),location.href).href.replace(new RegExp("^"+location.origin),""),u=(e,t)=>e.filter(e=>t in e),l=async({request:e,mode:t,plugins:n=[]})=>{const s=u(n,"cacheKeyWillBeUsed");let r=e;for(const e of s)r=await e.cacheKeyWillBeUsed.call(e,{mode:t,request:r}),"string"==typeof r&&(r=new Request(r));return r},f=async({cacheName:e,request:t,event:n,matchOptions:s,plugins:r=[]})=>{const i=await self.caches.open(e),o=await l({plugins:r,request:t,mode:"read"});let a=await i.match(o,s);for(const t of r)if("cachedResponseWillBeUsed"in t){const r=t.cachedResponseWillBeUsed;a=await r.call(t,{cacheName:e,event:n,matchOptions:s,cachedResponse:a,request:o})}return a},h={put:async({cacheName:e,request:t,response:s,event:r,plugins:i=[],matchOptions:o})=>{const h=await l({plugins:i,request:t,mode:"write"});if(!s)throw new n("cache-put-with-no-response",{url:c(h.url)});const w=await(async({request:e,response:t,event:n,plugins:s=[]})=>{let r=t,i=!1;for(const t of s)if("cacheWillUpdate"in t){i=!0;const s=t.cacheWillUpdate;if(r=await s.call(t,{request:e,response:r,event:n}),!r)break}return i||(r=r&&200===r.status?r:void 0),r||null})({event:r,plugins:i,response:s,request:h});if(!w)return;const p=await self.caches.open(e),d=u(i,"cacheDidUpdate"),g=d.length>0?await f({cacheName:e,matchOptions:o,request:h}):null;try{await p.put(h,w)}catch(e){throw"QuotaExceededError"===e.name&&await a(),e}for(const t of d)await t.cacheDidUpdate.call(t,{cacheName:e,event:r,oldResponse:g,newResponse:w,request:h})},match:f};let w,p;function d(){if(void 0===p){const e=new Response("");if("body"in e)try{new Response(e.body),p=!0}catch(e){p=!1}p=!1}return p}class g{constructor(e,t,{onupgradeneeded:n,onversionchange:s}={}){this.t=null,this.s=e,this.i=t,this.o=n,this.u=s||(()=>this.close())}get db(){return this.t}async open(){if(!this.t)return this.t=await new Promise((e,t)=>{let n=!1;setTimeout(()=>{n=!0,t(new Error("The open request was blocked and timed out"))},this.OPEN_TIMEOUT);const s=indexedDB.open(this.s,this.i);s.onerror=()=>t(s.error),s.onupgradeneeded=e=>{n?(s.transaction.abort(),s.result.close()):"function"==typeof this.o&&this.o(e)},s.onsuccess=()=>{const t=s.result;n?t.close():(t.onversionchange=this.u.bind(this),e(t))}}),this}async getKey(e,t){return(await this.getAllKeys(e,t,1))[0]}async getAll(e,t,n){return await this.getAllMatching(e,{query:t,count:n})}async getAllKeys(e,t,n){return(await this.getAllMatching(e,{query:t,count:n,includeKeys:!0})).map(e=>e.key)}async getAllMatching(e,{index:t,query:n=null,direction:s="next",count:r,includeKeys:i=!1}={}){return await this.transaction([e],"readonly",(o,a)=>{const c=o.objectStore(e),u=t?c.index(t):c,l=[],f=u.openCursor(n,s);f.onsuccess=()=>{const e=f.result;e?(l.push(i?e:e.value),r&&l.length>=r?a(l):e.continue()):a(l)}})}async transaction(e,t,n){return await this.open(),await new Promise((s,r)=>{const i=this.t.transaction(e,t);i.onabort=()=>r(i.error),i.oncomplete=()=>s(),n(i,e=>s(e))})}async l(e,t,n,...s){return await this.transaction([t],n,(n,r)=>{const i=n.objectStore(t),o=i[e].apply(i,s);o.onsuccess=()=>r(o.result)})}close(){this.t&&(this.t.close(),this.t=null)}}g.prototype.OPEN_TIMEOUT=2e3;const y={readonly:["get","count","getKey","getAll","getAllKeys"],readwrite:["add","put","clear","delete"]};for(const[e,t]of Object.entries(y))for(const n of t)n in IDBObjectStore.prototype&&(g.prototype[n]=async function(t,...s){return await this.l(n,t,e,...s)});const m={fetch:async({request:e,fetchOptions:t,event:s,plugins:r=[]})=>{if("string"==typeof e&&(e=new Request(e)),s instanceof FetchEvent&&s.preloadResponse){const e=await s.preloadResponse;if(e)return e}const i=u(r,"fetchDidFail"),o=i.length>0?e.clone():null;try{for(const t of r)if("requestWillFetch"in t){const n=t.requestWillFetch,r=e.clone();e=await n.call(t,{request:r,event:s})}}catch(e){throw new n("plugin-error-request-will-fetch",{thrownError:e})}const a=e.clone();try{let n;n="navigate"===e.mode?await fetch(e):await fetch(e,t);for(const e of r)"fetchDidSucceed"in e&&(n=await e.fetchDidSucceed.call(e,{event:s,request:a,response:n}));return n}catch(e){for(const t of i)await t.fetchDidFail.call(t,{Line truncated
+//# sourceMappingURL=workbox-core.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-core.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-core.prod.js","sources":["../_version.js","../_private/logger.js","../models/messages/messageGenerator.js","../_private/WorkboxError.js","../_private/assert.js","../models/quotaErrorCallbacks.js","../_private/cacheNames.js","../_private/executeQuotaErrorCallbacks.js","../_private/getFriendlyURL.js","../utils/pluginUtils.js","../_private/cacheWrapper.js","../_private/canConstructReadableStream.js","../_private/canConstructResponseFromBodyStream.js","../_private/DBWrapper.js","../_private/deleteDatabase.js","../_private/fetchWrapper.js","../_private/timeout.js","../_private/dontWaitFor.js","../_private/Deferred.js","../_private/resultingClientExists.js","../cacheNames.js","../clientsClaim.js","../copyResponse.js","../registerQuotaErrorCallback.js","../setCacheNameDetails.js","../skipWaiting.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:core:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2019 Google LLC\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nconst logger = (process.env.NODE_ENV === 'production' ? null : (() => {\n    // Don't overwrite this value if it's already set.\n    // See https://github.com/GoogleChrome/workbox/pull/2284#issuecomment-560470923\n    if (!('__WB_DISABLE_DEV_LOGS' in self)) {\n        self.__WB_DISABLE_DEV_LOGS = false;\n    }\n    let inGroup = false;\n    const methodToColorMap = {\n        debug: `#7f8c8d`,\n        log: `#2ecc71`,\n        warn: `#f39c12`,\n        error: `#c0392b`,\n        groupCollapsed: `#3498db`,\n        groupEnd: null,\n    };\n    const print = function (method, args) {\n        if (self.__WB_DISABLE_DEV_LOGS) {\n            return;\n        }\n        if (method === 'groupCollapsed') {\n            // Safari doesn't print all console.groupCollapsed() arguments:\n            // https://bugs.webkit.org/show_bug.cgi?id=182754\n            if (/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {\n                console[method](...args);\n                return;\n            }\n        }\n        const styles = [\n            `background: ${methodToColorMap[method]}`,\n            `border-radius: 0.5em`,\n            `color: white`,\n            `font-weight: bold`,\n            `padding: 2px 0.5em`,\n        ];\n        // When in a group, the workbox prefix is not displayed.\n        const logPrefix = inGroup ? [] : ['%cworkbox', styles.join(';')];\n        console[method](...logPrefix, ...args);\n        if (method === 'groupCollapsed') {\n            inGroup = true;\n        }\n        if (method === 'groupEnd') {\n            inGroup = false;\n        }\n    };\n    const api = {};\n    const loggerMethods = Object.keys(methodToColorMap);\n    for (const key of loggerMethods) {\n        const method = key;\n        api[method] = (...args) => {\n            print(method, args);\n        };\n    }\n    return api;\n})());\nexport { logger };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { messages } from './messages.js';\nimport '../../_version.js';\nconst fallback = (code, ...args) => {\n    let msg = code;\n    if (args.length > 0) {\n        msg += ` :: ${JSON.stringify(args)}`;\n    }\n    return msg;\n};\nconst generatorFunction = (code, details = {}) => {\n    const message = messages[code];\n    if (!message) {\n        throw new Error(`Unable to find message for code '${code}'.`);\n    }\n    return message(details);\n};\nexport const messageGenerator = (process.env.NODE_ENV === 'production') ?\n    fallback : generatorFunction;\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { messageGenerator } from '../models/messages/messageGenerator.js';\nimport '../_version.js';\n/**\n * Workbox errors should be thrown with this class.\n * This allows use to ensure the type easily in tests,\n * helps developers identify errors from workbox\n * easily and allows use to optimise error\n * messages correctly.\n *\n * @private\n */\nclass WorkboxError extends Error {\n    /**\n     *\n     * @param {string} errorCode The error code that\n     * identifies this particular error.\n     * @param {Object=} details Any relevant arguments\n     * that will help developers identify issues should\n     * be added as a key on the context object.\n     */\n    constructor(errorCode, details) {\n        const message = messageGenerator(errorCode, details);\n        super(message);\n        this.name = errorCode;\n        this.details = details;\n    }\n}\nexport { WorkboxError };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by aLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-expiration.dev.js

@@ -0,0 +1,649 @@
+this.workbox = this.workbox || {};
+this.workbox.expiration = (function (exports, assert_js, dontWaitFor_js, logger_js, WorkboxError_js, DBWrapper_js, deleteDatabase_js, cacheNames_js, getFriendlyURL_js, registerQuotaErrorCallback_js) {
+    'use strict';
+
+    try {
+      self['workbox:expiration:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const DB_NAME = 'workbox-expiration';
+    const OBJECT_STORE_NAME = 'cache-entries';
+
+    const normalizeURL = unNormalizedUrl => {
+      const url = new URL(unNormalizedUrl, location.href);
+      url.hash = '';
+      return url.href;
+    };
+    /**
+     * Returns the timestamp model.
+     *
+     * @private
+     */
+
+
+    class CacheTimestampsModel {
+      /**
+       *
+       * @param {string} cacheName
+       *
+       * @private
+       */
+      constructor(cacheName) {
+        this._cacheName = cacheName;
+        this._db = new DBWrapper_js.DBWrapper(DB_NAME, 1, {
+          onupgradeneeded: event => this._handleUpgrade(event)
+        });
+      }
+      /**
+       * Should perform an upgrade of indexedDB.
+       *
+       * @param {Event} event
+       *
+       * @private
+       */
+
+
+      _handleUpgrade(event) {
+        const db = event.target.result; // TODO(philipwalton): EdgeHTML doesn't support arrays as a keyPath, so we
+        // have to use the `id` keyPath here and create our own values (a
+        // concatenation of `url + cacheName`) instead of simply using
+        // `keyPath: ['url', 'cacheName']`, which is supported in other browsers.
+
+        const objStore = db.createObjectStore(OBJECT_STORE_NAME, {
+          keyPath: 'id'
+        }); // TODO(philipwalton): once we don't have to support EdgeHTML, we can
+        // create a single index with the keyPath `['cacheName', 'timestamp']`
+        // instead of doing both these indexes.
+
+        objStore.createIndex('cacheName', 'cacheName', {
+          unique: false
+        });
+        objStore.createIndex('timestamp', 'timestamp', {
+          unique: false
+        }); // Previous versions of `workbox-expiration` used `this._cacheName`
+        // as the IDBDatabase name.
+
+        deleteDatabase_js.deleteDatabase(this._cacheName);
+      }
+      /**
+       * @param {string} url
+       * @param {number} timestamp
+       *
+       * @private
+       */
+
+
+      async setTimestamp(url, timestamp) {
+        url = normalizeURL(url);
+        const entry = {
+          url,
+          timestamp,
+          cacheName: this._cacheName,
+          // Creating an ID from the URL and cache name won't be necessary once
+          // Edge switches to Chromium and all browsers we support work with
+          // array keyPaths.
+          id: this._getId(url)
+        };
+        await this._db.put(OBJECT_STORE_NAME, entry);
+      }
+      /**
+       * Returns the timestamp stored for a given URL.
+       *
+       * @param {string} url
+       * @return {number}
+       *
+       * @private
+       */
+
+
+      async getTimestamp(url) {
+        const entry = await this._db.get(OBJECT_STORE_NAME, this._getId(url));
+        return entry.timestamp;
+      }
+      /**
+       * Iterates through all the entries in the object store (from newest to
+       * oldest) and removes entries once either `maxCount` is reached or the
+       * entry's timestamp is less than `minTimestamp`.
+       *
+       * @param {number} minTimestamp
+       * @param {number} maxCount
+       * @return {Array<string>}
+       *
+       * @private
+       */
+
+
+      async expireEntries(minTimestamp, maxCount) {
+        const entriesToDelete = await this._db.transaction(OBJECT_STORE_NAME, 'readwrite', (txn, done) => {
+          const store = txn.objectStore(OBJECT_STORE_NAME);
+          const request = store.index('timestamp').openCursor(null, 'prev');
+          const entriesToDelete = [];
+          let entriesNotDeletedCount = 0;
+
+          request.onsuccess = () => {
+            const cursor = request.result;
+
+            if (cursor) {
+              const result = cursor.value; // TODO(philipwalton): once we can use a multi-key index, we
+              // won't have to check `cacheName` here.
+
+              if (result.cacheName === this._cacheName) {
+                // Delete an entry if it's older than the max age or
+                // if we already have the max number allowed.
+                if (minTimestamp && result.timestamp < minTimestamp || maxCount && entriesNotDeletedCount >= maxCount) {
+                  // TODO(philipwalton): we should be able to delete the
+                  // entry right here, but doing so causes an iteration
+                  // bug in Safari stable (fixed in TP). Instead we can
+                  // store the keys of the entries to delete, and then
+                  // delete the separate transactions.
+                  // https://github.com/GoogleChrome/workbox/issues/1978
+                  // cursor.delete();
+                  // We only need to return the URL, not the whole entry.
+                  entriesToDelete.push(cursor.value);
+                } else {
+                  entriesNotDeletedCount++;
+                }
+              }
+
+              cursor.continue();
+            } else {
+              done(entriesToDelete);
+            }
+          };
+        }); // TODO(philipwalton): once the Safari bug in the following issue is fixed,
+        // we should be able to remove this loop and do the entry deletion in the
+        // cursor loop above:
+        // https://github.com/GoogleChrome/workbox/issues/1978
+
+        const urlsDeleted = [];
+
+        for (const entry of entriesToDelete) {
+          await this._db.delete(OBJECT_STORE_NAME, entry.id);
+          urlsDeleted.push(entry.url);
+        }
+
+        return urlsDeleted;
+      }
+      /**
+       * Takes a URL and returns an ID that will be unique in the object store.
+       *
+       * @param {string} url
+       * @return {string}
+       *
+       * @private
+       */
+
+
+      _getId(url) {
+        // Creating an ID from the URL and cache name won't be necessary once
+        // Edge switches to Chromium and all browsers we support work with
+        // array keyPaths.
+        return this._cacheName + '|' + normalizeURL(url);
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * The `CacheExpiration` class allows you define an expiration and / or
+     * limit on the number of responses stored in a
+     * [`Cache`](https://developer.mozilla.org/en-US/docs/Web/API/Cache).
+     *
+     * @memberof module:workbox-expiration
+     */
+
+    class CacheExpiration {
+      /**
+       * To construct a new CacheExpiration instance you must provide at least
+       * one of the `config` properties.
+       *
+       * @param {string} cacheName Name of the cache to apply restrictions to.
+       * @param {Object} config
+       * @param {number} [config.maxEntries] The maximum number of entries to cache.
+       * Entries used the least will be removed as the maximum is reached.
+       * @param {number} [config.maxAgeSeconds] The maximum age of an entry before
+       * it's treated as stale and removed.
+       */
+      constructor(cacheName, config = {}) {
+        this._isRunning = false;
+        this._rerunRequested = false;
+
+        {
+          assert_js.assert.isType(cacheName, 'string', {
+            moduleName: 'workbox-expiration',
+            className: 'CacheExpiration',
+            funcName: 'constructor',
+            paramName: 'cacheName'
+          });
+
+          if (!(config.maxEntries || config.maxAgeSeconds)) {
+            throw new WorkboxError_js.WorkboxError('max-entries-or-age-required', {
+              moduleName: 'workbox-expiration',
+              className: 'CacheExpiration',
+              funcName: 'constructor'
+            });
+          }
+
+          if (config.maxEntries) {
+            assert_js.assert.isType(config.maxEntries, 'number', {
+              moduleName: 'workbox-expiration',
+              className: 'CacheExpiration',
+              funcName: 'constructor',
+              paramName: 'config.maxEntries'
+            }); // TODO: Assert is positive
+          }
+
+          if (config.maxAgeSeconds) {
+            assert_js.assert.isType(config.maxAgeSeconds, 'number', {
+              moduleName: 'workbox-expiration',
+              className: 'CacheExpiration',
+              funcName: 'constructor',
+              paramName: 'config.maxAgeSeconds'
+            }); // TODO: Assert is positive
+          }
+        }
+
+        this._maxEntries = config.maxEntries;
+        this._maxAgeSeconds = config.maxAgeSeconds;
+        this._cacheName = cacheName;
+        this._timestampModel = new CacheTimestampsModel(cacheName);
+      }
+      /**
+       * Expires entries for the given cache and given criteria.
+       */
+
+
+      async expireEntries() {
+        if (this._isRunning) {
+          this._rerunRequested = true;
+          return;
+        }
+
+        this._isRunning = true;
+        const minTimestamp = this._maxAgeSeconds ? Date.now() - this._maxAgeSeconds * 1000 : 0;
+        const urlsExpired = await this._timestampModel.expireEntries(minTimestamp, this._maxEntries); // Delete URLs from the cache
+
+        const cache = await self.caches.open(this._cacheName);
+
+        for (const url of urlsExpired) {
+          await cache.delete(url);
+        }
+
+        {
+          if (urlsExpired.length > 0) {
+            logger_js.logger.groupCollapsed(`Expired ${urlsExpired.length} ` + `${urlsExpired.length === 1 ? 'entry' : 'entries'} and removed ` + `${urlsExpired.length === 1 ? 'it' : 'them'} from the ` + `'${this._cacheName}' cache.`);
+            logger_js.logger.log(`Expired the following ${urlsExpired.length === 1 ? 'URL' : 'URLs'}:`);
+            urlsExpired.forEach(url => logger_js.logger.log(`    ${url}`));
+            logger_js.logger.groupEnd();
+          } else {
+            logger_js.logger.debug(`Cache expiration ran and found no entries to remove.`);
+          }
+        }
+
+        this._isRunning = false;
+
+        if (this._rerunRequested) {
+          this._rerunRequested = false;
+          dontWaitFor_js.dontWaitFor(this.expireEntries());
+        }
+      }
+      /**
+       * Update the timestamp for the given URL. This ensures the when
+       * removing entries based on maximum entries, most recently used
+       * is accurate or when expiring, the timestamp is up-to-date.
+       *
+       * @param {string} url
+       */
+
+
+      async updateTimestamp(url) {
+        {
+          assert_js.assert.isType(url, 'string', {
+            moduleName: 'workbox-expiration',
+            className: 'CacheExpiration',
+            funcName: 'updateTimestamp',
+            paramName: 'url'
+          });
+        }
+
+        await this._timestampModel.setTimestamp(url, Date.now());
+      }
+      /**
+       * Can be used to check if a URL has expired or not before it's used.
+       *
+       * This requires a look up from IndexedDB, so can be slow.
+       *
+       * Note: This method will not remove the cached entry, call
+       * `expireEntries()` to remove indexedDB and Cache entries.
+       *
+       * @param {string} url
+       * @return {boolean}
+       */
+
+
+      async isURLExpired(url) {
+        if (!this._maxAgeSeconds) {
+          {
+            throw new WorkboxError_js.WorkboxError(`expired-test-without-max-age`, {
+              methodName: 'isURLExpired',
+              paramName: 'maxAgeSeconds'
+            });
+          }
+        } else {
+          const timestamp = await this._timestampModel.getTimestamp(url);
+          const expireOlderThan = Date.now() - this._maxAgeSeconds * 1000;
+          return timestamp < expireOlderThan;
+        }
+      }
+      /**
+       * Removes the IndexedDB object store used to keep track of cache expiration
+       * metadata.
+       */
+
+
+      async delete() {
+        // Make sure we don't attempt another rerun if we're called in the middle of
+        // a cache expiration.
+        this._rerunRequested = false;
+        await this._timestampModel.expireEntries(Infinity); // Expires all.
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * This plugin can be used in the Workbox APIs to regularly enforce a
+     * limit on the age and / or the number of cached requests.
+     *
+     * Whenever a cached request is used or updated, this plugin will look
+     * at the used Cache and remove any old or extra requests.
+     *
+     * When using `maxAgeSeconds`, requests may be used *once* after expiring
+     * because the expiration clean up will not have occurred until *after* the
+     * cached request has been used. If the request has a "Date" header, then
+     * a light weight expiration check is performed and the request will not be
+     * used immediately.
+     *
+     * When using `maxEntries`, the entry least-recently requested will be removed
+     * from the cache first.
+     *
+     * @memberof module:workbox-expiration
+     */
+
+    class ExpirationPlugin {
+      /**
+       * @param {Object} config
+       * @param {number} [config.maxEntries] The maximum number of entries to cache.
+       * Entries used the least will be removed as the maximum is reached.
+       * @param {number} [config.maxAgeSeconds] The maximum age of an entry before
+       * it's treated as stale and removed.
+       * @param {boolean} [config.purgeOnQuotaError] Whether to opt this cache in to
+       * automatic deletion if the available storage quota has been exceeded.
+       */
+      constructor(config = {}) {
+        /**
+         * A "lifecycle" callback that will be triggered automatically by the
+         * `workbox-strategies` handlers when a `Response` is about to be returned
+         * from a [Cache](https://developer.mozilla.org/en-US/docs/Web/API/Cache) to
+         * the handler. It allows the `Response` to be inspected for freshness and
+         * prevents it from being used if the `Response`'s `Date` header value is
+         * older than the configured `maxAgeSeconds`.
+         *
+         * @param {Object} options
+         * @param {string} options.cacheName Name of the cache the response is in.
+         * @param {Response} options.cachedResponse The `Response` object that's been
+         *     read from a cache and whose freshness should be checked.
+         * @return {Response} Either the `cachedResponse`, if it's
+         *     fresh, or `null` if the `Response` is older than `maxAgeSeconds`.
+         *
+         * @private
+         */
+        this.cachedResponseWillBeUsed = async ({
+          event,
+          request,
+          cacheName,
+          cachedResponse
+        }) => {
+          if (!cachedResponse) {
+            return null;
+          }
+
+          const isFresh = this._isResponseDateFresh(cachedResponse); // Expire entries to ensure that even if the expiration date has
+          // expired, it'll only be used once.
+
+
+          const cacheExpiration = this._getCacheExpiration(cacheName);
+
+          dontWaitFor_js.dontWaitFor(cacheExpiration.expireEntries()); // Update the metadata for the request URL to the current timestamp,
+          // but don't `await` it as we don't want to block the response.
+
+          const updateTimestampDone = cacheExpiration.updateTimestamp(request.url);
+
+          if (event) {
+            try {
+              event.waitUntil(updateTimestampDone);
+            } catch (error) {
+              {
+                // The event may not be a fetch event; only log the URL if it is.
+                if ('request' in event) {
+                  logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache entry for ` + `'${getFriendlyURL_js.getFriendlyURL(event.request.url)}'.`);
+                }
+              }
+            }
+          }
+
+          return isFresh ? cachedResponse : null;
+        };
+        /**
+         * A "lifecycle" callback that will be triggered automatically by the
+         * `workbox-strategies` handlers when an entry is added to a cache.
+         *
+         * @param {Object} options
+         * @param {string} options.cacheName Name of the cache that was updated.
+         * @param {string} options.request The Request for the cached entry.
+         *
+         * @private
+         */
+
+
+        this.cacheDidUpdate = async ({
+          cacheName,
+          request
+        }) => {
+          {
+            assert_js.assert.isType(cacheName, 'string', {
+              moduleName: 'workbox-expiration',
+              className: 'Plugin',
+              funcName: 'cacheDidUpdate',
+              paramName: 'cacheName'
+            });
+            assert_js.assert.isInstance(request, Request, {
+              moduleName: 'workbox-expiration',
+              className: 'Plugin',
+              funcName: 'cacheDidUpdate',
+              paramName: 'request'
+            });
+          }
+
+          const cacheExpiration = this._getCacheExpiration(cacheName);
+
+          await cacheExpiration.updateTimestamp(request.url);
+          await cacheExpiration.expireEntries();
+        };
+
+        {
+          if (!(config.maxEntries || config.maxAgeSeconds)) {
+            throw new WorkboxError_js.WorkboxError('max-entries-or-age-required', {
+              moduleName: 'workbox-expiration',
+              className: 'Plugin',
+              funcName: 'constructor'
+            });
+          }
+
+          if (config.maxEntries) {
+            assert_js.assert.isType(config.maxEntries, 'number', {
+              moduleName: 'workbox-expiration',
+              className: 'Plugin',
+              funcName: 'constructor',
+              paramName: 'config.maxEntries'
+            });
+          }
+
+          if (config.maxAgeSeconds) {
+            assert_js.assert.isType(config.maxAgeSeconds, 'number', {
+              moduleName: 'workbox-expiration',
+              className: 'Plugin',
+              funcName: 'constructor',
+              paramName: 'config.maxAgeSeconds'
+            });
+          }
+        }
+
+        this._config = config;
+        this._maxAgeSeconds = config.maxAgeSeconds;
+        this._cacheExpirations = new Map();
+
+        if (config.purgeOnQuotaError) {
+          registerQuotaErrorCallback_js.registerQuotaErrorCallback(() => this.deleteCacheAndMetadata());
+        }
+      }
+      /**
+       * A simple helper method to return a CacheExpiration instance for a given
+       * cache name.
+       *
+       * @param {string} cacheName
+       * @return {CacheExpiration}
+       *
+       * @private
+       */
+
+
+      _getCacheExpiration(cacheName) {
+        if (cacheName === cacheNames_js.cacheNames.getRuntimeName()) {
+          throw new WorkboxError_js.WorkboxError('expire-custom-caches-only');
+        }
+
+        let cacheExpiration = this._cacheExpirations.get(cacheName);
+
+        if (!cacheExpiration) {
+          cacheExpiration = new CacheExpiration(cacheName, this._config);
+
+          this._cacheExpirations.set(cacheName, cacheExpiration);
+        }
+
+        return cacheExpiration;
+      }
+      /**
+       * @param {Response} cachedResponse
+       * @return {boolean}
+       *
+       * @private
+       */
+
+
+      _isResponseDateFresh(cachedResponse) {
+        if (!this._maxAgeSeconds) {
+          // We aren't expiring by age, so return true, it's fresh
+          return true;
+        } // Check if the 'date' header will suffice a quick expiration check.
+        // See https://github.com/GoogleChromeLabs/sw-toolbox/issues/164 for
+        // discussion.
+
+
+        const dateHeaderTimestamp = this._getDateHeaderTimestamp(cachedResponse);
+
+        if (dateHeaderTimestamp === null) {
+          // Unable to parse date, so assume it's fresh.
+          return true;
+        } // If we have a valid headerTime, then our response is fresh iff the
+        // headerTime plus maxAgeSeconds is greater than the current time.
+
+
+        const now = Date.now();
+        return dateHeaderTimestamp >= now - this._maxAgeSeconds * 1000;
+      }
+      /**
+       * This method will extract the data header and parse it into a useful
+       * value.
+       *
+       * @param {Response} cachedResponse
+       * @return {number|null}
+       *
+       * @private
+       */
+
+
+      _getDateHeaderTimestamp(cachedResponse) {
+        if (!cachedResponse.headers.has('date')) {
+          return null;
+        }
+
+        const dateHeader = cachedResponse.headers.get('date');
+        const parsedDate = new Date(dateHeader);
+        const headerTime = parsedDate.getTime(); // If the Date header was invalid for some reason, parsedDate.getTime()
+        // will return NaN.
+
+        if (isNaN(headerTime)) {
+          return null;
+        }
+
+        return headerTime;
+      }
+      /**
+       * This is a helper method that performs two operations:
+       *
+       * - Deletes *all* the underlying Cache instances associated with this plugin
+       * instance, by calling caches.delete() on your behalf.
+       * - Deletes the metadata from IndexedDB used to keep track of expiration
+       * details for each Cache instance.
+       *
+       * When using cache expiration, calling this method is preferable to calling
+       * `caches.delete()` directly, since this will ensure that the IndexedDB
+       * metadata is also cleanly removed and open IndexedDB instances are deleted.
+       *
+       * Note that if you're *not* using cache expiration for a given cache, calling
+       * `caches.delete()` and passing in the cache's name should be sufficient.
+       * There is no Workbox-specific method needed for cleanup in that case.
+       */
+
+
+      async deleteCacheAndMetadata() {
+        // Do this one at a time instead of all at once via `Promise.all()` to
+        // reduce the chance of inconsistency if a promise rejects.
+        for (const [cacheName, cacheExpiration] of this._cacheExpirations) {
+          await self.caches.delete(cacheName);
+          await cacheExpiration.delete();
+        } // Reset this._cacheExpirations to its initial state.
+
+
+        this._cacheExpirations = new Map();
+      }
+
+    }
+
+    exports.CacheExpiration = CacheExpiration;
+    exports.ExpirationPlugin = ExpirationPlugin;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core));
+//# sourceMappingURL=workbox-expiration.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-expiration.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-expiration.dev.js","sources":["../_version.js","../models/CacheTimestampsModel.js","../CacheExpiration.js","../ExpirationPlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:expiration:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { DBWrapper } from 'workbox-core/_private/DBWrapper.js';\nimport { deleteDatabase } from 'workbox-core/_private/deleteDatabase.js';\nimport '../_version.js';\nconst DB_NAME = 'workbox-expiration';\nconst OBJECT_STORE_NAME = 'cache-entries';\nconst normalizeURL = (unNormalizedUrl) => {\n    const url = new URL(unNormalizedUrl, location.href);\n    url.hash = '';\n    return url.href;\n};\n/**\n * Returns the timestamp model.\n *\n * @private\n */\nclass CacheTimestampsModel {\n    /**\n     *\n     * @param {string} cacheName\n     *\n     * @private\n     */\n    constructor(cacheName) {\n        this._cacheName = cacheName;\n        this._db = new DBWrapper(DB_NAME, 1, {\n            onupgradeneeded: (event) => this._handleUpgrade(event),\n        });\n    }\n    /**\n     * Should perform an upgrade of indexedDB.\n     *\n     * @param {Event} event\n     *\n     * @private\n     */\n    _handleUpgrade(event) {\n        const db = event.target.result;\n        // TODO(philipwalton): EdgeHTML doesn't support arrays as a keyPath, so we\n        // have to use the `id` keyPath here and create our own values (a\n        // concatenation of `url + cacheName`) instead of simply using\n        // `keyPath: ['url', 'cacheName']`, which is supported in other browsers.\n        const objStore = db.createObjectStore(OBJECT_STORE_NAME, { keyPath: 'id' });\n        // TODO(philipwalton): once we don't have to support EdgeHTML, we can\n        // create a single index with the keyPath `['cacheName', 'timestamp']`\n        // instead of doing both these indexes.\n        objStore.createIndex('cacheName', 'cacheName', { unique: false });\n        objStore.createIndex('timestamp', 'timestamp', { unique: false });\n        // Previous versions of `workbox-expiration` used `this._cacheName`\n        // as the IDBDatabase name.\n        deleteDatabase(this._cacheName);\n    }\n    /**\n     * @param {string} url\n     * @param {number} timestamp\n     *\n     * @private\n     */\n    async setTimestamp(url, timestamp) {\n        url = normalizeURL(url);\n        const entry = {\n            url,\n            timestamp,\n            cacheName: this._cacheName,\n            // Creating an ID from the URL and cache name won't be necessary once\n            // Edge switches to Chromium and all browsers we support work with\n            // array keyPaths.\n            id: this._getId(url),\n        };\n        await this._db.put(OBJECT_STORE_NAME, entry);\n    }\n    /**\n     * Returns the timestamp stored for a given URL.\n     *\n     * @param {string} url\n     * @return {number}\n     *\n     * @private\n     */\n    async getTimestamp(url) {\n        const entry = await this._db.get(OBJECT_STORE_NAME, this._getId(url));\n        return entry.timestamp;\n    }\n    /**\n     * Iterates through all the entries in the object store (from newest to\n     * oldest) and removes entries once either `maxCount` is reached or the\n     * entry's timestamp is less than `minTimestamp`.\n     *\n     * @param {number} minTimestamp\n     * @param {number} maxCount\n     * @return {Array<string>}\n     *\n     * @private\n     */\n    async expireEntries(minTimestamp, maxCount) {\n        const entriesToDelete = await this._db.transaction(OBJECT_STORE_NAME, 'readwrite', (txn, done) => {\n            const store = txn.objectStore(OBJECT_STORE_NAME);\n            const request = store.index('timestamp').openCursor(null, 'prev');\n            const entriesToDelete = [];\n            let entriesNotDeletedCount = 0;\n            request.onsuccess = () => {\n                const cursor = request.result;\n                if (cursor) {\n                    const result = cursor.value;\n                    // TODO(philipwalton): once we can use a multi-key index, we\n                    // won't have to check `cacheName` here.\n                    if (result.cacheName === this._cacheName) {\n                        // Delete an entry if it's older than the max age or\n                        // if we already have the max number allowed.\n                        if ((minTimestamp && result.timestamp < minTimestamp) ||\n                            (maxCount && entriesNotDeletedCount >= maxCount)) {\n                            // TODO(philipwalton): we should be able to delete the\n                            // entry right here, but doing so causes an iteration\n                            // bug in Safari stable (fixed in TP). Instead we can\n                            //Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-expiration.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.expiration=function(t,e,s,i,a,n,h){"use strict";try{self["workbox:expiration:5.1.4"]&&_()}catch(t){}const r=t=>{const e=new URL(t,location.href);return e.hash="",e.href};class c{constructor(t){this.t=t,this.s=new i.DBWrapper("workbox-expiration",1,{onupgradeneeded:t=>this.i(t)})}i(t){const e=t.target.result.createObjectStore("cache-entries",{keyPath:"id"});e.createIndex("cacheName","cacheName",{unique:!1}),e.createIndex("timestamp","timestamp",{unique:!1}),a.deleteDatabase(this.t)}async setTimestamp(t,e){const s={url:t=r(t),timestamp:e,cacheName:this.t,id:this.h(t)};await this.s.put("cache-entries",s)}async getTimestamp(t){return(await this.s.get("cache-entries",this.h(t))).timestamp}async expireEntries(t,e){const s=await this.s.transaction("cache-entries","readwrite",(s,i)=>{const a=s.objectStore("cache-entries").index("timestamp").openCursor(null,"prev"),n=[];let h=0;a.onsuccess=()=>{const s=a.result;if(s){const i=s.value;i.cacheName===this.t&&(t&&i.timestamp<t||e&&h>=e?n.push(s.value):h++),s.continue()}else i(n)}}),i=[];for(const t of s)await this.s.delete("cache-entries",t.id),i.push(t.url);return i}h(t){return this.t+"|"+r(t)}}class o{constructor(t,e={}){this.o=!1,this.u=!1,this.l=e.maxEntries,this.m=e.maxAgeSeconds,this.t=t,this.p=new c(t)}async expireEntries(){if(this.o)return void(this.u=!0);this.o=!0;const t=this.m?Date.now()-1e3*this.m:0,s=await this.p.expireEntries(t,this.l),i=await self.caches.open(this.t);for(const t of s)await i.delete(t);this.o=!1,this.u&&(this.u=!1,e.dontWaitFor(this.expireEntries()))}async updateTimestamp(t){await this.p.setTimestamp(t,Date.now())}async isURLExpired(t){if(this.m){return await this.p.getTimestamp(t)<Date.now()-1e3*this.m}return!1}async delete(){this.u=!1,await this.p.expireEntries(1/0)}}return t.CacheExpiration=o,t.ExpirationPlugin=class{constructor(t={}){this.cachedResponseWillBeUsed=async({event:t,request:s,cacheName:i,cachedResponse:a})=>{if(!a)return null;const n=this.k(a),h=this.D(i);e.dontWaitFor(h.expireEntries());const r=h.updateTimestamp(s.url);if(t)try{t.waitUntil(r)}catch(t){}return n?a:null},this.cacheDidUpdate=async({cacheName:t,request:e})=>{const s=this.D(t);await s.updateTimestamp(e.url),await s.expireEntries()},this.N=t,this.m=t.maxAgeSeconds,this.g=new Map,t.purgeOnQuotaError&&h.registerQuotaErrorCallback(()=>this.deleteCacheAndMetadata())}D(t){if(t===n.cacheNames.getRuntimeName())throw new s.WorkboxError("expire-custom-caches-only");let e=this.g.get(t);return e||(e=new o(t,this.N),this.g.set(t,e)),e}k(t){if(!this.m)return!0;const e=this._(t);if(null===e)return!0;return e>=Date.now()-1e3*this.m}_(t){if(!t.headers.has("date"))return null;const e=t.headers.get("date"),s=new Date(e).getTime();return isNaN(s)?null:s}async deleteCacheAndMetadata(){for(const[t,e]of this.g)await self.caches.delete(t),await e.delete();this.g=new Map}},t}({},workbox.core._private,workbox.core._private,workbox.core._private,workbox.core._private,workbox.core._private,workbox.core);
+//# sourceMappingURL=workbox-expiration.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-expiration.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-expiration.prod.js","sources":["../_version.js","../models/CacheTimestampsModel.js","../CacheExpiration.js","../ExpirationPlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:expiration:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { DBWrapper } from 'workbox-core/_private/DBWrapper.js';\nimport { deleteDatabase } from 'workbox-core/_private/deleteDatabase.js';\nimport '../_version.js';\nconst DB_NAME = 'workbox-expiration';\nconst OBJECT_STORE_NAME = 'cache-entries';\nconst normalizeURL = (unNormalizedUrl) => {\n    const url = new URL(unNormalizedUrl, location.href);\n    url.hash = '';\n    return url.href;\n};\n/**\n * Returns the timestamp model.\n *\n * @private\n */\nclass CacheTimestampsModel {\n    /**\n     *\n     * @param {string} cacheName\n     *\n     * @private\n     */\n    constructor(cacheName) {\n        this._cacheName = cacheName;\n        this._db = new DBWrapper(DB_NAME, 1, {\n            onupgradeneeded: (event) => this._handleUpgrade(event),\n        });\n    }\n    /**\n     * Should perform an upgrade of indexedDB.\n     *\n     * @param {Event} event\n     *\n     * @private\n     */\n    _handleUpgrade(event) {\n        const db = event.target.result;\n        // TODO(philipwalton): EdgeHTML doesn't support arrays as a keyPath, so we\n        // have to use the `id` keyPath here and create our own values (a\n        // concatenation of `url + cacheName`) instead of simply using\n        // `keyPath: ['url', 'cacheName']`, which is supported in other browsers.\n        const objStore = db.createObjectStore(OBJECT_STORE_NAME, { keyPath: 'id' });\n        // TODO(philipwalton): once we don't have to support EdgeHTML, we can\n        // create a single index with the keyPath `['cacheName', 'timestamp']`\n        // instead of doing both these indexes.\n        objStore.createIndex('cacheName', 'cacheName', { unique: false });\n        objStore.createIndex('timestamp', 'timestamp', { unique: false });\n        // Previous versions of `workbox-expiration` used `this._cacheName`\n        // as the IDBDatabase name.\n        deleteDatabase(this._cacheName);\n    }\n    /**\n     * @param {string} url\n     * @param {number} timestamp\n     *\n     * @private\n     */\n    async setTimestamp(url, timestamp) {\n        url = normalizeURL(url);\n        const entry = {\n            url,\n            timestamp,\n            cacheName: this._cacheName,\n            // Creating an ID from the URL and cache name won't be necessary once\n            // Edge switches to Chromium and all browsers we support work with\n            // array keyPaths.\n            id: this._getId(url),\n        };\n        await this._db.put(OBJECT_STORE_NAME, entry);\n    }\n    /**\n     * Returns the timestamp stored for a given URL.\n     *\n     * @param {string} url\n     * @return {number}\n     *\n     * @private\n     */\n    async getTimestamp(url) {\n        const entry = await this._db.get(OBJECT_STORE_NAME, this._getId(url));\n        return entry.timestamp;\n    }\n    /**\n     * Iterates through all the entries in the object store (from newest to\n     * oldest) and removes entries once either `maxCount` is reached or the\n     * entry's timestamp is less than `minTimestamp`.\n     *\n     * @param {number} minTimestamp\n     * @param {number} maxCount\n     * @return {Array<string>}\n     *\n     * @private\n     */\n    async expireEntries(minTimestamp, maxCount) {\n        const entriesToDelete = await this._db.transaction(OBJECT_STORE_NAME, 'readwrite', (txn, done) => {\n            const store = txn.objectStore(OBJECT_STORE_NAME);\n            const request = store.index('timestamp').openCursor(null, 'prev');\n            const entriesToDelete = [];\n            let entriesNotDeletedCount = 0;\n            request.onsuccess = () => {\n                const cursor = request.result;\n                if (cursor) {\n                    const result = cursor.value;\n                    // TODO(philipwalton): once we can use a multi-key index, we\n                    // won't have to check `cacheName` here.\n                    if (result.cacheName === this._cacheName) {\n                        // Delete an entry if it's older than the max age or\n                        // if we already have the max number allowed.\n                        if ((minTimestamp && result.timestamp < minTimestamp) ||\n                            (maxCount && entriesNotDeletedCount >= maxCount)) {\n                            // TODO(philipwalton): we should be able to delete the\n                            // entry right here, but doing so causes an iteration\n                            // bug in Safari stable (fixed in TP). Instead we can\n                            /Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-navigation-preload.dev.js

@@ -0,0 +1,102 @@
+this.workbox = this.workbox || {};
+this.workbox.navigationPreload = (function (exports, logger_js) {
+    'use strict';
+
+    try {
+      self['workbox:navigation-preload:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * @return {boolean} Whether or not the current browser supports enabling
+     * navigation preload.
+     *
+     * @memberof module:workbox-navigation-preload
+     */
+
+    function isSupported() {
+      return Boolean(self.registration && self.registration.navigationPreload);
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * If the browser supports Navigation Preload, then this will disable it.
+     *
+     * @memberof module:workbox-navigation-preload
+     */
+
+    function disable() {
+      if (isSupported()) {
+        self.addEventListener('activate', event => {
+          event.waitUntil(self.registration.navigationPreload.disable().then(() => {
+            {
+              logger_js.logger.log(`Navigation preload is disabled.`);
+            }
+          }));
+        });
+      } else {
+        {
+          logger_js.logger.log(`Navigation preload is not supported in this browser.`);
+        }
+      }
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * If the browser supports Navigation Preload, then this will enable it.
+     *
+     * @param {string} [headerValue] Optionally, allows developers to
+     * [override](https://developers.google.com/web/updates/2017/02/navigation-preload#changing_the_header)
+     * the value of the `Service-Worker-Navigation-Preload` header which will be
+     * sent to the server when making the navigation request.
+     *
+     * @memberof module:workbox-navigation-preload
+     */
+
+    function enable(headerValue) {
+      if (isSupported()) {
+        self.addEventListener('activate', event => {
+          event.waitUntil(self.registration.navigationPreload.enable().then(() => {
+            // Defaults to Service-Worker-Navigation-Preload: true if not set.
+            if (headerValue) {
+              self.registration.navigationPreload.setHeaderValue(headerValue);
+            }
+
+            {
+              logger_js.logger.log(`Navigation preload is enabled.`);
+            }
+          }));
+        });
+      } else {
+        {
+          logger_js.logger.log(`Navigation preload is not supported in this browser.`);
+        }
+      }
+    }
+
+    exports.disable = disable;
+    exports.enable = enable;
+    exports.isSupported = isSupported;
+
+    return exports;
+
+}({}, workbox.core._private));
+//# sourceMappingURL=workbox-navigation-preload.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-navigation-preload.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-navigation-preload.dev.js","sources":["../_version.js","../isSupported.js","../disable.js","../enable.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:navigation-preload:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport './_version.js';\n/**\n * @return {boolean} Whether or not the current browser supports enabling\n * navigation preload.\n *\n * @memberof module:workbox-navigation-preload\n */\nfunction isSupported() {\n    return Boolean(self.registration && self.registration.navigationPreload);\n}\nexport { isSupported };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { isSupported } from './isSupported.js';\nimport './_version.js';\n/**\n * If the browser supports Navigation Preload, then this will disable it.\n *\n * @memberof module:workbox-navigation-preload\n */\nfunction disable() {\n    if (isSupported()) {\n        self.addEventListener('activate', (event) => {\n            event.waitUntil(self.registration.navigationPreload.disable().then(() => {\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.log(`Navigation preload is disabled.`);\n                }\n            }));\n        });\n    }\n    else {\n        if (process.env.NODE_ENV !== 'production') {\n            logger.log(`Navigation preload is not supported in this browser.`);\n        }\n    }\n}\nexport { disable };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { isSupported } from './isSupported.js';\nimport './_version.js';\n/**\n * If the browser supports Navigation Preload, then this will enable it.\n *\n * @param {string} [headerValue] Optionally, allows developers to\n * [override](https://developers.google.com/web/updates/2017/02/navigation-preload#changing_the_header)\n * the value of the `Service-Worker-Navigation-Preload` header which will be\n * sent to the server when making the navigation request.\n *\n * @memberof module:workbox-navigation-preload\n */\nfunction enable(headerValue) {\n    if (isSupported()) {\n        self.addEventListener('activate', (event) => {\n            event.waitUntil(self.registration.navigationPreload.enable().then(() => {\n                // Defaults to Service-Worker-Navigation-Preload: true if not set.\n                if (headerValue) {\n                    self.registration.navigationPreload.setHeaderValue(headerValue);\n                }\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.log(`Navigation preload is enabled.`);\n                }\n            }));\n        });\n    }\n    else {\n        if (process.env.NODE_ENV !== 'production') {\n            logger.log(`Navigation preload is not supported in this browser.`);\n        }\n    }\n}\nexport { enable };\n"],"names":["self","_","e","isSupported","Boolean","registration","navigationPreload","disable","addEventListener","event","waitUntil","then","logger","log","enable","headerValue","setHeaderValue"],"mappings":";;;;IAEA,IAAI;IACAA,EAAAA,IAAI,CAAC,kCAAD,CAAJ,IAA4CC,CAAC,EAA7C;IACH,CAFD,CAGA,OAAOC,CAAP,EAAU;;ICLV;;;;;;;AAOA,IACA;;;;;;;IAMA,SAASC,WAAT,GAAuB;IACnB,SAAOC,OAAO,CAACJ,IAAI,CAACK,YAAL,IAAqBL,IAAI,CAACK,YAAL,CAAkBC,iBAAxC,CAAd;IACH;;IChBD;;;;;;;AAOA,IAGA;;;;;;IAKA,SAASC,OAAT,GAAmB;IACf,MAAIJ,WAAW,EAAf,EAAmB;IACfH,IAAAA,IAAI,CAACQ,gBAAL,CAAsB,UAAtB,EAAmCC,KAAD,IAAW;IACzCA,MAAAA,KAAK,CAACC,SAAN,CAAgBV,IAAI,CAACK,YAAL,CAAkBC,iBAAlB,CAAoCC,OAApC,GAA8CI,IAA9C,CAAmD,MAAM;IACrE,QAA2C;IACvCC,UAAAA,gBAAM,CAACC,GAAP,CAAY,iCAAZ;IACH;IACJ,OAJe,CAAhB;IAKH,KAND;IAOH,GARD,MASK;IACD,IAA2C;IACvCD,MAAAA,gBAAM,CAACC,GAAP,CAAY,sDAAZ;IACH;IACJ;IACJ;;IC9BD;;;;;;;AAOA,IAGA;;;;;;;;;;;IAUA,SAASC,MAAT,CAAgBC,WAAhB,EAA6B;IACzB,MAAIZ,WAAW,EAAf,EAAmB;IACfH,IAAAA,IAAI,CAACQ,gBAAL,CAAsB,UAAtB,EAAmCC,KAAD,IAAW;IACzCA,MAAAA,KAAK,CAACC,SAAN,CAAgBV,IAAI,CAACK,YAAL,CAAkBC,iBAAlB,CAAoCQ,MAApC,GAA6CH,IAA7C,CAAkD,MAAM;IACpE;IACA,YAAII,WAAJ,EAAiB;IACbf,UAAAA,IAAI,CAACK,YAAL,CAAkBC,iBAAlB,CAAoCU,cAApC,CAAmDD,WAAnD;IACH;;IACD,QAA2C;IACvCH,UAAAA,gBAAM,CAACC,GAAP,CAAY,gCAAZ;IACH;IACJ,OARe,CAAhB;IASH,KAVD;IAWH,GAZD,MAaK;IACD,IAA2C;IACvCD,MAAAA,gBAAM,CAACC,GAAP,CAAY,sDAAZ;IACH;IACJ;IACJ;;;;;;;;;;;;"}

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-navigation-preload.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.navigationPreload=function(t){"use strict";try{self["workbox:navigation-preload:5.1.4"]&&_()}catch(t){}function e(){return Boolean(self.registration&&self.registration.navigationPreload)}return t.disable=function(){e()&&self.addEventListener("activate",t=>{t.waitUntil(self.registration.navigationPreload.disable().then(()=>{}))})},t.enable=function(t){e()&&self.addEventListener("activate",e=>{e.waitUntil(self.registration.navigationPreload.enable().then(()=>{t&&self.registration.navigationPreload.setHeaderValue(t)}))})},t.isSupported=e,t}({});
+//# sourceMappingURL=workbox-navigation-preload.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-navigation-preload.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-navigation-preload.prod.js","sources":["../_version.js","../isSupported.js","../disable.js","../enable.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:navigation-preload:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport './_version.js';\n/**\n * @return {boolean} Whether or not the current browser supports enabling\n * navigation preload.\n *\n * @memberof module:workbox-navigation-preload\n */\nfunction isSupported() {\n    return Boolean(self.registration && self.registration.navigationPreload);\n}\nexport { isSupported };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { isSupported } from './isSupported.js';\nimport './_version.js';\n/**\n * If the browser supports Navigation Preload, then this will disable it.\n *\n * @memberof module:workbox-navigation-preload\n */\nfunction disable() {\n    if (isSupported()) {\n        self.addEventListener('activate', (event) => {\n            event.waitUntil(self.registration.navigationPreload.disable().then(() => {\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.log(`Navigation preload is disabled.`);\n                }\n            }));\n        });\n    }\n    else {\n        if (process.env.NODE_ENV !== 'production') {\n            logger.log(`Navigation preload is not supported in this browser.`);\n        }\n    }\n}\nexport { disable };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { isSupported } from './isSupported.js';\nimport './_version.js';\n/**\n * If the browser supports Navigation Preload, then this will enable it.\n *\n * @param {string} [headerValue] Optionally, allows developers to\n * [override](https://developers.google.com/web/updates/2017/02/navigation-preload#changing_the_header)\n * the value of the `Service-Worker-Navigation-Preload` header which will be\n * sent to the server when making the navigation request.\n *\n * @memberof module:workbox-navigation-preload\n */\nfunction enable(headerValue) {\n    if (isSupported()) {\n        self.addEventListener('activate', (event) => {\n            event.waitUntil(self.registration.navigationPreload.enable().then(() => {\n                // Defaults to Service-Worker-Navigation-Preload: true if not set.\n                if (headerValue) {\n                    self.registration.navigationPreload.setHeaderValue(headerValue);\n                }\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.log(`Navigation preload is enabled.`);\n                }\n            }));\n        });\n    }\n    else {\n        if (process.env.NODE_ENV !== 'production') {\n            logger.log(`Navigation preload is not supported in this browser.`);\n        }\n    }\n}\nexport { enable };\n"],"names":["self","_","e","isSupported","Boolean","registration","navigationPreload","addEventListener","event","waitUntil","disable","then","headerValue","enable","setHeaderValue"],"mappings":"sFAEA,IACIA,KAAK,qCAAuCC,IAEhD,MAAOC,ICSP,SAASC,WACEC,QAAQJ,KAAKK,cAAgBL,KAAKK,aAAaC,oCCA1D,WACQH,KACAH,KAAKO,iBAAiB,WAAaC,IAC/BA,EAAMC,UAAUT,KAAKK,aAAaC,kBAAkBI,UAAUC,KAAK,qBCE/E,SAAgBC,GACRT,KACAH,KAAKO,iBAAiB,WAAaC,IAC/BA,EAAMC,UAAUT,KAAKK,aAAaC,kBAAkBO,SAASF,KAAK,KAE1DC,GACAZ,KAAKK,aAAaC,kBAAkBQ,eAAeF"}

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-offline-ga.dev.js

@@ -0,0 +1,235 @@
+this.workbox = this.workbox || {};
+this.workbox.googleAnalytics = (function (exports, BackgroundSyncPlugin_js, cacheNames_js, getFriendlyURL_js, logger_js, Route_js, Router_js, NetworkFirst_js, NetworkOnly_js) {
+    'use strict';
+
+    try {
+      self['workbox:google-analytics:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const QUEUE_NAME = 'workbox-google-analytics';
+    const MAX_RETENTION_TIME = 60 * 48; // Two days in minutes
+
+    const GOOGLE_ANALYTICS_HOST = 'www.google-analytics.com';
+    const GTM_HOST = 'www.googletagmanager.com';
+    const ANALYTICS_JS_PATH = '/analytics.js';
+    const GTAG_JS_PATH = '/gtag/js';
+    const GTM_JS_PATH = '/gtm.js';
+    // endpoints. Most of the time the default path (/collect) is used, but
+    // occasionally an experimental endpoint is used when testing new features,
+    // (e.g. /r/collect or /j/collect)
+
+    const COLLECT_PATHS_REGEX = /^\/(\w+\/)?collect/;
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Creates the requestWillDequeue callback to be used with the background
+     * sync plugin. The callback takes the failed request and adds the
+     * `qt` param based on the current time, as well as applies any other
+     * user-defined hit modifications.
+     *
+     * @param {Object} config See {@link module:workbox-google-analytics.initialize}.
+     * @return {Function} The requestWillDequeue callback function.
+     *
+     * @private
+     */
+
+    const createOnSyncCallback = config => {
+      return async ({
+        queue
+      }) => {
+        let entry;
+
+        while (entry = await queue.shiftRequest()) {
+          const {
+            request,
+            timestamp
+          } = entry;
+          const url = new URL(request.url);
+
+          try {
+            // Measurement protocol requests can set their payload parameters in
+            // either the URL query string (for GET requests) or the POST body.
+            const params = request.method === 'POST' ? new URLSearchParams(await request.clone().text()) : url.searchParams; // Calculate the qt param, accounting for the fact that an existing
+            // qt param may be present and should be updated rather than replaced.
+
+            const originalHitTime = timestamp - (Number(params.get('qt')) || 0);
+            const queueTime = Date.now() - originalHitTime; // Set the qt param prior to applying hitFilter or parameterOverrides.
+
+            params.set('qt', String(queueTime)); // Apply `parameterOverrides`, if set.
+
+            if (config.parameterOverrides) {
+              for (const param of Object.keys(config.parameterOverrides)) {
+                const value = config.parameterOverrides[param];
+                params.set(param, value);
+              }
+            } // Apply `hitFilter`, if set.
+
+
+            if (typeof config.hitFilter === 'function') {
+              config.hitFilter.call(null, params);
+            } // Retry the fetch. Ignore URL search params from the URL as they're
+            // now in the post body.
+
+
+            await fetch(new Request(url.origin + url.pathname, {
+              body: params.toString(),
+              method: 'POST',
+              mode: 'cors',
+              credentials: 'omit',
+              headers: {
+                'Content-Type': 'text/plain'
+              }
+            }));
+
+            if ("dev" !== 'production') {
+              logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(url.href)}'` + `has been replayed`);
+            }
+          } catch (err) {
+            await queue.unshiftRequest(entry);
+
+            {
+              logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(url.href)}'` + `failed to replay, putting it back in the queue.`);
+            }
+
+            throw err;
+          }
+        }
+
+        {
+          logger_js.logger.log(`All Google Analytics request successfully replayed; ` + `the queue is now empty!`);
+        }
+      };
+    };
+    /**
+     * Creates GET and POST routes to catch failed Measurement Protocol hits.
+     *
+     * @param {BackgroundSyncPlugin} bgSyncPlugin
+     * @return {Array<Route>} The created routes.
+     *
+     * @private
+     */
+
+
+    const createCollectRoutes = bgSyncPlugin => {
+      const match = ({
+        url
+      }) => url.hostname === GOOGLE_ANALYTICS_HOST && COLLECT_PATHS_REGEX.test(url.pathname);
+
+      const handler = new NetworkOnly_js.NetworkOnly({
+        plugins: [bgSyncPlugin]
+      });
+      return [new Route_js.Route(match, handler, 'GET'), new Route_js.Route(match, handler, 'POST')];
+    };
+    /**
+     * Creates a route with a network first strategy for the analytics.js script.
+     *
+     * @param {string} cacheName
+     * @return {Route} The created route.
+     *
+     * @private
+     */
+
+
+    const createAnalyticsJsRoute = cacheName => {
+      const match = ({
+        url
+      }) => url.hostname === GOOGLE_ANALYTICS_HOST && url.pathname === ANALYTICS_JS_PATH;
+
+      const handler = new NetworkFirst_js.NetworkFirst({
+        cacheName
+      });
+      return new Route_js.Route(match, handler, 'GET');
+    };
+    /**
+     * Creates a route with a network first strategy for the gtag.js script.
+     *
+     * @param {string} cacheName
+     * @return {Route} The created route.
+     *
+     * @private
+     */
+
+
+    const createGtagJsRoute = cacheName => {
+      const match = ({
+        url
+      }) => url.hostname === GTM_HOST && url.pathname === GTAG_JS_PATH;
+
+      const handler = new NetworkFirst_js.NetworkFirst({
+        cacheName
+      });
+      return new Route_js.Route(match, handler, 'GET');
+    };
+    /**
+     * Creates a route with a network first strategy for the gtm.js script.
+     *
+     * @param {string} cacheName
+     * @return {Route} The created route.
+     *
+     * @private
+     */
+
+
+    const createGtmJsRoute = cacheName => {
+      const match = ({
+        url
+      }) => url.hostname === GTM_HOST && url.pathname === GTM_JS_PATH;
+
+      const handler = new NetworkFirst_js.NetworkFirst({
+        cacheName
+      });
+      return new Route_js.Route(match, handler, 'GET');
+    };
+    /**
+     * @param {Object=} [options]
+     * @param {Object} [options.cacheName] The cache name to store and retrieve
+     *     analytics.js. Defaults to the cache names provided by `workbox-core`.
+     * @param {Object} [options.parameterOverrides]
+     *     [Measurement Protocol parameters](https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters),
+     *     expressed as key/value pairs, to be added to replayed Google Analytics
+     *     requests. This can be used to, e.g., set a custom dimension indicating
+     *     that the request was replayed.
+     * @param {Function} [options.hitFilter] A function that allows you to modify
+     *     the hit parameters prior to replaying
+     *     the hit. The function is invoked with the original hit's URLSearchParams
+     *     object as its only argument.
+     *
+     * @memberof module:workbox-google-analytics
+     */
+
+
+    const initialize = (options = {}) => {
+      const cacheName = cacheNames_js.cacheNames.getGoogleAnalyticsName(options.cacheName);
+      const bgSyncPlugin = new BackgroundSyncPlugin_js.BackgroundSyncPlugin(QUEUE_NAME, {
+        maxRetentionTime: MAX_RETENTION_TIME,
+        onSync: createOnSyncCallback(options)
+      });
+      const routes = [createGtmJsRoute(cacheName), createAnalyticsJsRoute(cacheName), createGtagJsRoute(cacheName), ...createCollectRoutes(bgSyncPlugin)];
+      const router = new Router_js.Router();
+
+      for (const route of routes) {
+        router.registerRoute(route);
+      }
+
+      router.addFetchListener();
+    };
+
+    exports.initialize = initialize;
+
+    return exports;
+
+}({}, workbox.backgroundSync, workbox.core._private, workbox.core._private, workbox.core._private, workbox.routing, workbox.routing, workbox.strategies, workbox.strategies));
+//# sourceMappingURL=workbox-offline-ga.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-offline-ga.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-offline-ga.dev.js","sources":["../_version.js","../utils/constants.js","../initialize.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:google-analytics:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nexport const QUEUE_NAME = 'workbox-google-analytics';\nexport const MAX_RETENTION_TIME = 60 * 48; // Two days in minutes\nexport const GOOGLE_ANALYTICS_HOST = 'www.google-analytics.com';\nexport const GTM_HOST = 'www.googletagmanager.com';\nexport const ANALYTICS_JS_PATH = '/analytics.js';\nexport const GTAG_JS_PATH = '/gtag/js';\nexport const GTM_JS_PATH = '/gtm.js';\nexport const COLLECT_DEFAULT_PATH = '/collect';\n// This RegExp matches all known Measurement Protocol single-hit collect\n// endpoints. Most of the time the default path (/collect) is used, but\n// occasionally an experimental endpoint is used when testing new features,\n// (e.g. /r/collect or /j/collect)\nexport const COLLECT_PATHS_REGEX = /^\\/(\\w+\\/)?collect/;\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { BackgroundSyncPlugin } from 'workbox-background-sync/BackgroundSyncPlugin.js';\nimport { cacheNames } from 'workbox-core/_private/cacheNames.js';\nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { Route } from 'workbox-routing/Route.js';\nimport { Router } from 'workbox-routing/Router.js';\nimport { NetworkFirst } from 'workbox-strategies/NetworkFirst.js';\nimport { NetworkOnly } from 'workbox-strategies/NetworkOnly.js';\nimport { QUEUE_NAME, MAX_RETENTION_TIME, GOOGLE_ANALYTICS_HOST, GTM_HOST, ANALYTICS_JS_PATH, GTAG_JS_PATH, GTM_JS_PATH, COLLECT_PATHS_REGEX, } from './utils/constants.js';\nimport './_version.js';\n/**\n * Creates the requestWillDequeue callback to be used with the background\n * sync plugin. The callback takes the failed request and adds the\n * `qt` param based on the current time, as well as applies any other\n * user-defined hit modifications.\n *\n * @param {Object} config See {@link module:workbox-google-analytics.initialize}.\n * @return {Function} The requestWillDequeue callback function.\n *\n * @private\n */\nconst createOnSyncCallback = (config) => {\n    return async ({ queue }) => {\n        let entry;\n        while (entry = await queue.shiftRequest()) {\n            const { request, timestamp } = entry;\n            const url = new URL(request.url);\n            try {\n                // Measurement protocol requests can set their payload parameters in\n                // either the URL query string (for GET requests) or the POST body.\n                const params = request.method === 'POST' ?\n                    new URLSearchParams(await request.clone().text()) :\n                    url.searchParams;\n                // Calculate the qt param, accounting for the fact that an existing\n                // qt param may be present and should be updated rather than replaced.\n                const originalHitTime = timestamp - (Number(params.get('qt')) || 0);\n                const queueTime = Date.now() - originalHitTime;\n                // Set the qt param prior to applying hitFilter or parameterOverrides.\n                params.set('qt', String(queueTime));\n                // Apply `parameterOverrides`, if set.\n                if (config.parameterOverrides) {\n                    for (const param of Object.keys(config.parameterOverrides)) {\n                        const value = config.parameterOverrides[param];\n                        params.set(param, value);\n                    }\n                }\n                // Apply `hitFilter`, if set.\n                if (typeof config.hitFilter === 'function') {\n                    config.hitFilter.call(null, params);\n                }\n                // Retry the fetch. Ignore URL search params from the URL as they're\n                // now in the post body.\n                await fetch(new Request(url.origin + url.pathname, {\n                    body: params.toString(),\n                    method: 'POST',\n                    mode: 'cors',\n                    credentials: 'omit',\n                    headers: { 'Content-Type': 'text/plain' },\n                }));\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.log(`Request for '${getFriendlyURL(url.href)}'` +\n                        `has been replayed`);\n                }\n            }\n            catch (err) {\n                await queue.unshiftRequest(entry);\n                if (process.env.NODE_ENV !== 'production') {\n                 Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-offline-ga.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.googleAnalytics=function(t,o,e,n,a,c,r,w,s){"use strict";try{self["workbox:google-analytics:5.1.4"]&&_()}catch(t){}const i=/^\/(\w+\/)?collect/,l=t=>{const o=({url:t})=>"www.google-analytics.com"===t.hostname&&i.test(t.pathname),e=new s.NetworkOnly({plugins:[t]});return[new c.Route(o,e,"GET"),new c.Route(o,e,"POST")]},g=t=>{const o=new w.NetworkFirst({cacheName:t});return new c.Route(({url:t})=>"www.google-analytics.com"===t.hostname&&"/analytics.js"===t.pathname,o,"GET")},m=t=>{const o=new w.NetworkFirst({cacheName:t});return new c.Route(({url:t})=>"www.googletagmanager.com"===t.hostname&&"/gtag/js"===t.pathname,o,"GET")},u=t=>{const o=new w.NetworkFirst({cacheName:t});return new c.Route(({url:t})=>"www.googletagmanager.com"===t.hostname&&"/gtm.js"===t.pathname,o,"GET")};return t.initialize=(t={})=>{const n=e.cacheNames.getGoogleAnalyticsName(t.cacheName),a=new o.BackgroundSyncPlugin("workbox-google-analytics",{maxRetentionTime:2880,onSync:(c=t,async({queue:t})=>{let o;for(;o=await t.shiftRequest();){const{request:e,timestamp:n}=o,a=new URL(e.url);try{const t="POST"===e.method?new URLSearchParams(await e.clone().text()):a.searchParams,o=n-(Number(t.get("qt"))||0),r=Date.now()-o;if(t.set("qt",String(r)),c.parameterOverrides)for(const o of Object.keys(c.parameterOverrides)){const e=c.parameterOverrides[o];t.set(o,e)}"function"==typeof c.hitFilter&&c.hitFilter.call(null,t),await fetch(new Request(a.origin+a.pathname,{body:t.toString(),method:"POST",mode:"cors",credentials:"omit",headers:{"Content-Type":"text/plain"}}))}catch(e){throw await t.unshiftRequest(o),e}}})});var c;const w=[u(n),g(n),m(n),...l(a)],s=new r.Router;for(const t of w)s.registerRoute(t);s.addFetchListener()},t}({},workbox.backgroundSync,workbox.core._private,workbox.core._private,workbox.core._private,workbox.routing,workbox.routing,workbox.strategies,workbox.strategies);
+//# sourceMappingURL=workbox-offline-ga.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-offline-ga.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-offline-ga.prod.js","sources":["../_version.js","../utils/constants.js","../initialize.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:google-analytics:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nexport const QUEUE_NAME = 'workbox-google-analytics';\nexport const MAX_RETENTION_TIME = 60 * 48; // Two days in minutes\nexport const GOOGLE_ANALYTICS_HOST = 'www.google-analytics.com';\nexport const GTM_HOST = 'www.googletagmanager.com';\nexport const ANALYTICS_JS_PATH = '/analytics.js';\nexport const GTAG_JS_PATH = '/gtag/js';\nexport const GTM_JS_PATH = '/gtm.js';\nexport const COLLECT_DEFAULT_PATH = '/collect';\n// This RegExp matches all known Measurement Protocol single-hit collect\n// endpoints. Most of the time the default path (/collect) is used, but\n// occasionally an experimental endpoint is used when testing new features,\n// (e.g. /r/collect or /j/collect)\nexport const COLLECT_PATHS_REGEX = /^\\/(\\w+\\/)?collect/;\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { BackgroundSyncPlugin } from 'workbox-background-sync/BackgroundSyncPlugin.js';\nimport { cacheNames } from 'workbox-core/_private/cacheNames.js';\nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { Route } from 'workbox-routing/Route.js';\nimport { Router } from 'workbox-routing/Router.js';\nimport { NetworkFirst } from 'workbox-strategies/NetworkFirst.js';\nimport { NetworkOnly } from 'workbox-strategies/NetworkOnly.js';\nimport { QUEUE_NAME, MAX_RETENTION_TIME, GOOGLE_ANALYTICS_HOST, GTM_HOST, ANALYTICS_JS_PATH, GTAG_JS_PATH, GTM_JS_PATH, COLLECT_PATHS_REGEX, } from './utils/constants.js';\nimport './_version.js';\n/**\n * Creates the requestWillDequeue callback to be used with the background\n * sync plugin. The callback takes the failed request and adds the\n * `qt` param based on the current time, as well as applies any other\n * user-defined hit modifications.\n *\n * @param {Object} config See {@link module:workbox-google-analytics.initialize}.\n * @return {Function} The requestWillDequeue callback function.\n *\n * @private\n */\nconst createOnSyncCallback = (config) => {\n    return async ({ queue }) => {\n        let entry;\n        while (entry = await queue.shiftRequest()) {\n            const { request, timestamp } = entry;\n            const url = new URL(request.url);\n            try {\n                // Measurement protocol requests can set their payload parameters in\n                // either the URL query string (for GET requests) or the POST body.\n                const params = request.method === 'POST' ?\n                    new URLSearchParams(await request.clone().text()) :\n                    url.searchParams;\n                // Calculate the qt param, accounting for the fact that an existing\n                // qt param may be present and should be updated rather than replaced.\n                const originalHitTime = timestamp - (Number(params.get('qt')) || 0);\n                const queueTime = Date.now() - originalHitTime;\n                // Set the qt param prior to applying hitFilter or parameterOverrides.\n                params.set('qt', String(queueTime));\n                // Apply `parameterOverrides`, if set.\n                if (config.parameterOverrides) {\n                    for (const param of Object.keys(config.parameterOverrides)) {\n                        const value = config.parameterOverrides[param];\n                        params.set(param, value);\n                    }\n                }\n                // Apply `hitFilter`, if set.\n                if (typeof config.hitFilter === 'function') {\n                    config.hitFilter.call(null, params);\n                }\n                // Retry the fetch. Ignore URL search params from the URL as they're\n                // now in the post body.\n                await fetch(new Request(url.origin + url.pathname, {\n                    body: params.toString(),\n                    method: 'POST',\n                    mode: 'cors',\n                    credentials: 'omit',\n                    headers: { 'Content-Type': 'text/plain' },\n                }));\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.log(`Request for '${getFriendlyURL(url.href)}'` +\n                        `has been replayed`);\n                }\n            }\n            catch (err) {\n                await queue.unshiftRequest(entry);\n                if (process.env.NODE_ENV !== 'production') {\n                Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-precaching.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-precaching.dev.js","sources":["../_version.js","../utils/precachePlugins.js","../addPlugins.js","../utils/createCacheKey.js","../utils/printCleanupDetails.js","../utils/printInstallDetails.js","../PrecacheController.js","../utils/getOrCreatePrecacheController.js","../utils/removeIgnoredSearchParams.js","../utils/generateURLVariations.js","../utils/getCacheKeyForURL.js","../utils/addFetchListener.js","../addRoute.js","../utils/deleteOutdatedCaches.js","../cleanupOutdatedCaches.js","../createHandler.js","../createHandlerBoundToURL.js","../getCacheKeyForURL.js","../matchPrecache.js","../precache.js","../precacheAndRoute.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:precaching:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2019 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nconst plugins = [];\nexport const precachePlugins = {\n    /*\n     * @return {Array}\n     * @private\n     */\n    get() {\n        return plugins;\n    },\n    /*\n     * @param {Array} newPlugins\n     * @private\n     */\n    add(newPlugins) {\n        plugins.push(...newPlugins);\n    },\n};\n","/*\n  Copyright 2019 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { precachePlugins } from './utils/precachePlugins.js';\nimport './_version.js';\n/**\n * Adds plugins to precaching.\n *\n * @param {Array<Object>} newPlugins\n *\n * @memberof module:workbox-precaching\n */\nfunction addPlugins(newPlugins) {\n    precachePlugins.add(newPlugins);\n}\nexport { addPlugins };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport '../_version.js';\n// Name of the search parameter used to store revision info.\nconst REVISION_SEARCH_PARAM = '__WB_REVISION__';\n/**\n * Converts a manifest entry into a versioned URL suitable for precaching.\n *\n * @param {Object|string} entry\n * @return {string} A URL with versioning info.\n *\n * @private\n * @memberof module:workbox-precaching\n */\nexport function createCacheKey(entry) {\n    if (!entry) {\n        throw new WorkboxError('add-to-cache-list-unexpected-type', { entry });\n    }\n    // If a precache manifest entry is a string, it's assumed to be a versioned\n    // URL, like '/app.abcd1234.js'. Return as-is.\n    if (typeof entry === 'string') {\n        const urlObject = new URL(entry, location.href);\n        return {\n            cacheKey: urlObject.href,\n            url: urlObject.href,\n        };\n    }\n    const { revision, url } = entry;\n    if (!url) {\n        throw new WorkboxError('add-to-cache-list-unexpected-type', { entry });\n    }\n    // If there's just a URL and no revision, then it's also assumed to be a\n    // versioned URL.\n    if (!revision) {\n        const urlObject = new URL(url, location.href);\n        return {\n            cacheKey: urlObject.href,\n            url: urlObject.href,\n        };\n    }\n    // Otherwise, construct a properly versioned URL using the custom Workbox\n    // search parameter along with the revision info.\n    const cacheKeyURL = new URL(url, location.href);\n    const originalURL = new URL(url, location.href);\n    cacheKeyURL.searchParams.set(REVISION_SEARCH_PARAM, revision);\n    return {\n        cacheKey: cacheKeyURL.href,\n        url: originalURL.href,\n    };\n}\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport '../_version.js';\n/**\n * @param {string} groupTitle\n * @param {Array<string>} deletedURLs\n *\n * @private\n */\nconst logGroup = (groupTitle, deletedURLs) => {\n    logger.groupCollapsed(groupTitle);\n    for (const url of deletedURLs) {\n        logger.log(url);\n    }\n    logger.groupEnd();\n};\n/**\n * @param {Array<string>} deletedURLs\n *\n * @private\n * @memberof module:workbox-precaching\n */\nexport function printCleanupDetails(deletedURLs) {\n    const deletionCount = deletedURLs.length;\n    if (deletionCount > 0) {\n        logger.groupCollapsed(`During precaching cleanup, ` +\n            `${deletionCount} cached ` +\n            `request${deletionCount === 1 ? ' was' : 's were'} deleted.`);\n        logGroup('Deleted Cache Requests', deletedURLs);\n        logger.groupEnd();\n    }\n}\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensouLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-precaching.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.precaching=function(t,e,n,i,s,c){"use strict";try{self["workbox:precaching:5.1.4"]&&_()}catch(t){}const r=[],o={get:()=>r,add(t){r.push(...t)}};function a(t){if(!t)throw new s.WorkboxError("add-to-cache-list-unexpected-type",{entry:t});if("string"==typeof t){const e=new URL(t,location.href);return{cacheKey:e.href,url:e.href}}const{revision:e,url:n}=t;if(!n)throw new s.WorkboxError("add-to-cache-list-unexpected-type",{entry:t});if(!e){const t=new URL(n,location.href);return{cacheKey:t.href,url:t.href}}const i=new URL(n,location.href),c=new URL(n,location.href);return i.searchParams.set("__WB_REVISION__",e),{cacheKey:i.href,url:c.href}}class h{constructor(t){this.t=e.cacheNames.getPrecacheName(t),this.i=new Map,this.s=new Map,this.o=new Map}addToCacheList(t){const e=[];for(const n of t){"string"==typeof n?e.push(n):n&&void 0===n.revision&&e.push(n.url);const{cacheKey:t,url:i}=a(n),c="string"!=typeof n&&n.revision?"reload":"default";if(this.i.has(i)&&this.i.get(i)!==t)throw new s.WorkboxError("add-to-cache-list-conflicting-entries",{firstEntry:this.i.get(i),secondEntry:t});if("string"!=typeof n&&n.integrity){if(this.o.has(t)&&this.o.get(t)!==n.integrity)throw new s.WorkboxError("add-to-cache-list-conflicting-integrities",{url:i});this.o.set(t,n.integrity)}if(this.i.set(i,t),this.s.set(i,c),e.length>0){const t=`Workbox is precaching URLs without revision info: ${e.join(", ")}\nThis is generally NOT safe. Learn more at https://bit.ly/wb-precache`;console.warn(t)}}}async install({event:t,plugins:e}={}){const n=[],i=[],s=await self.caches.open(this.t),c=await s.keys(),r=new Set(c.map(t=>t.url));for(const[t,e]of this.i)r.has(e)?i.push(t):n.push({cacheKey:e,url:t});const o=n.map(({cacheKey:n,url:i})=>{const s=this.o.get(n),c=this.s.get(i);return this.h({cacheKey:n,cacheMode:c,event:t,integrity:s,plugins:e,url:i})});await Promise.all(o);return{updatedURLs:n.map(t=>t.url),notUpdatedURLs:i}}async activate(){const t=await self.caches.open(this.t),e=await t.keys(),n=new Set(this.i.values()),i=[];for(const s of e)n.has(s.url)||(await t.delete(s),i.push(s.url));return{deletedURLs:i}}async h({cacheKey:t,url:e,cacheMode:r,event:o,plugins:a,integrity:h}){const u=new Request(e,{integrity:h,cache:r,credentials:"same-origin"});let l,f=await i.fetchWrapper.fetch({event:o,plugins:a,request:u});for(const t of a||[])"cacheWillUpdate"in t&&(l=t);if(!(l?await l.cacheWillUpdate({event:o,request:u,response:f}):f.status<400))throw new s.WorkboxError("bad-precaching-response",{url:e,status:f.status});f.redirected&&(f=await c.copyResponse(f)),await n.cacheWrapper.put({event:o,plugins:a,response:f,request:t===e?u:new Request(t),cacheName:this.t,matchOptions:{ignoreSearch:!0}})}getURLsToCacheKeys(){return this.i}getCachedURLs(){return[...this.i.keys()]}getCacheKeyForURL(t){const e=new URL(t,location.href);return this.i.get(e.href)}async matchPrecache(t){const e=t instanceof Request?t.url:t,n=this.getCacheKeyForURL(e);if(n){return(await self.caches.open(this.t)).match(n)}}createHandler(t=!0){return async({request:e})=>{try{const t=await this.matchPrecache(e);if(t)return t;throw new s.WorkboxError("missing-precache-entry",{cacheName:this.t,url:e instanceof Request?e.url:e})}catch(n){if(t)return fetch(e);throw n}}}createHandlerBoundToURL(t,e=!0){if(!this.getCacheKeyForURL(t))throw new s.WorkboxError("non-precached-url",{url:t});const n=this.createHandler(e),i=new Request(t);return()=>n({request:i})}}let u;const l=()=>(u||(u=new h),u);const f=(t,e)=>{const n=l().getURLsToCacheKeys();for(const i of function*(t,{ignoreURLParametersMatching:e,directoryIndex:n,cleanURLs:i,urlManipulation:s}={}){const c=new URL(t,location.href);c.hash="",yield c.href;const r=function(t,e=[]){for(const n of[...t.searchParams.keys()])e.some(t=>t.test(n))&&t.searchParams.delete(n);return t}(c,e);if(yield r.href,n&&r.pathname.endsWith("/")){const t=new URL(r.href);t.pathname+=n,yield t.href}if(i){const t=new URL(r.href);t.pathname+=".html",yield t.href}if(s){const t=s({url:c});for(const e of t)yield e.href}}(t,e)){const t=n.get(i);if(t)return t}};let w=!1;function d(t){w||((({ignoreURLParametersMatching:t=[/^utm_/],directoryIndex:n="index.html",cleanURLs:i=!0,urlManipulation:s}={})=>{const c=e.cacheNames.getPrecacheName();self.addEventListener("fetch",e=>{const r=f(e.request.url,{cleanURLs:i,directoryIndex:n,ignoreURLParametersMatching:t,urlManipulation:s});if(!r)return;let o=self.caches.open(c).then(t=>t.match(r)).then(t=>t||fetch(r));e.respondWith(o)})})(t),w=!0)}const y=t=>{const e=l(),n=o.get();t.waitUntil(e.install({event:t,plugins:n}).catch(t=>{throw t}))},p=t=>{const e=l();t.waitUntil(e.activate())};function g(t){l().addToCacheList(t),t.length>0&&(self.addEventListener("install",y),self.addEventListener("activate",p))}return t.PrecacheController=h,t.addPlugins=function(t){o.add(t)},t.addRoute=d,t.cleanupOutdatedCaches=function(){self.addEventListener("activate",t=>{const n=e.cacheNames.getPrecacheName();t.waitUntil((asynLine truncated
+//# sourceMappingURL=workbox-precaching.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-precaching.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-precaching.prod.js","sources":["../_version.js","../utils/precachePlugins.js","../utils/createCacheKey.js","../PrecacheController.js","../utils/getOrCreatePrecacheController.js","../utils/getCacheKeyForURL.js","../utils/generateURLVariations.js","../utils/removeIgnoredSearchParams.js","../addRoute.js","../utils/addFetchListener.js","../precache.js","../addPlugins.js","../cleanupOutdatedCaches.js","../utils/deleteOutdatedCaches.js","../createHandler.js","../createHandlerBoundToURL.js","../getCacheKeyForURL.js","../matchPrecache.js","../precacheAndRoute.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:precaching:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2019 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nconst plugins = [];\nexport const precachePlugins = {\n    /*\n     * @return {Array}\n     * @private\n     */\n    get() {\n        return plugins;\n    },\n    /*\n     * @param {Array} newPlugins\n     * @private\n     */\n    add(newPlugins) {\n        plugins.push(...newPlugins);\n    },\n};\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport '../_version.js';\n// Name of the search parameter used to store revision info.\nconst REVISION_SEARCH_PARAM = '__WB_REVISION__';\n/**\n * Converts a manifest entry into a versioned URL suitable for precaching.\n *\n * @param {Object|string} entry\n * @return {string} A URL with versioning info.\n *\n * @private\n * @memberof module:workbox-precaching\n */\nexport function createCacheKey(entry) {\n    if (!entry) {\n        throw new WorkboxError('add-to-cache-list-unexpected-type', { entry });\n    }\n    // If a precache manifest entry is a string, it's assumed to be a versioned\n    // URL, like '/app.abcd1234.js'. Return as-is.\n    if (typeof entry === 'string') {\n        const urlObject = new URL(entry, location.href);\n        return {\n            cacheKey: urlObject.href,\n            url: urlObject.href,\n        };\n    }\n    const { revision, url } = entry;\n    if (!url) {\n        throw new WorkboxError('add-to-cache-list-unexpected-type', { entry });\n    }\n    // If there's just a URL and no revision, then it's also assumed to be a\n    // versioned URL.\n    if (!revision) {\n        const urlObject = new URL(url, location.href);\n        return {\n            cacheKey: urlObject.href,\n            url: urlObject.href,\n        };\n    }\n    // Otherwise, construct a properly versioned URL using the custom Workbox\n    // search parameter along with the revision info.\n    const cacheKeyURL = new URL(url, location.href);\n    const originalURL = new URL(url, location.href);\n    cacheKeyURL.searchParams.set(REVISION_SEARCH_PARAM, revision);\n    return {\n        cacheKey: cacheKeyURL.href,\n        url: originalURL.href,\n    };\n}\n","/*\n  Copyright 2019 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { cacheNames } from 'workbox-core/_private/cacheNames.js';\nimport { cacheWrapper } from 'workbox-core/_private/cacheWrapper.js';\nimport { fetchWrapper } from 'workbox-core/_private/fetchWrapper.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { copyResponse } from 'workbox-core/copyResponse.js';\nimport { createCacheKey } from './utils/createCacheKey.js';\nimport { printCleanupDetails } from './utils/printCleanupDetails.js';\nimport { printInstallDetails } from './utils/printInstallDetails.js';\nimport './_version.js';\n/**\n * Performs efficient precaching of assets.\n *\n * @memberof module:workbox-precaching\n */\nclass PrecacheController {\n    /**\n     * Create a new PrecacheController.\n     *\n     * @param {string} [cacheName] An optional name for the cache, to override\n     * the default precache name.\n     */\n    constructor(cacheName) {\n        this._cacheName = cacheNames.getPrecacheName(cacheName);\n        this._urlsToCacheKeys = new Map();\n        this._urlsToCacheModes = new Map();\n        this._cacheKeysToIntegrities = new Map();\n    }\n    /**\n     * This method will add items to the precache list, removing duplicates\n     * and ensuring the information is valid.\n     *\n     * @param {\n     * Array<module:workbox-precaching.PrecacheController.PrecacheEntry|string>\n     * } entries Array of entries to precache.\n     */\n    addToCacheList(entries) {\n        if (process.env.NODE_ENV !== 'production') {\n Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-range-requests.dev.js

@@ -0,0 +1,262 @@
+this.workbox = this.workbox || {};
+this.workbox.rangeRequests = (function (exports, WorkboxError_js, assert_js, logger_js) {
+    'use strict';
+
+    try {
+      self['workbox:range-requests:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * @param {Blob} blob A source blob.
+     * @param {number} [start] The offset to use as the start of the
+     * slice.
+     * @param {number} [end] The offset to use as the end of the slice.
+     * @return {Object} An object with `start` and `end` properties, reflecting
+     * the effective boundaries to use given the size of the blob.
+     *
+     * @private
+     */
+
+    function calculateEffectiveBoundaries(blob, start, end) {
+      {
+        assert_js.assert.isInstance(blob, Blob, {
+          moduleName: 'workbox-range-requests',
+          funcName: 'calculateEffectiveBoundaries',
+          paramName: 'blob'
+        });
+      }
+
+      const blobSize = blob.size;
+
+      if (end && end > blobSize || start && start < 0) {
+        throw new WorkboxError_js.WorkboxError('range-not-satisfiable', {
+          size: blobSize,
+          end,
+          start
+        });
+      }
+
+      let effectiveStart;
+      let effectiveEnd;
+
+      if (start !== undefined && end !== undefined) {
+        effectiveStart = start; // Range values are inclusive, so add 1 to the value.
+
+        effectiveEnd = end + 1;
+      } else if (start !== undefined && end === undefined) {
+        effectiveStart = start;
+        effectiveEnd = blobSize;
+      } else if (end !== undefined && start === undefined) {
+        effectiveStart = blobSize - end;
+        effectiveEnd = blobSize;
+      }
+
+      return {
+        start: effectiveStart,
+        end: effectiveEnd
+      };
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * @param {string} rangeHeader A Range: header value.
+     * @return {Object} An object with `start` and `end` properties, reflecting
+     * the parsed value of the Range: header. If either the `start` or `end` are
+     * omitted, then `null` will be returned.
+     *
+     * @private
+     */
+
+    function parseRangeHeader(rangeHeader) {
+      {
+        assert_js.assert.isType(rangeHeader, 'string', {
+          moduleName: 'workbox-range-requests',
+          funcName: 'parseRangeHeader',
+          paramName: 'rangeHeader'
+        });
+      }
+
+      const normalizedRangeHeader = rangeHeader.trim().toLowerCase();
+
+      if (!normalizedRangeHeader.startsWith('bytes=')) {
+        throw new WorkboxError_js.WorkboxError('unit-must-be-bytes', {
+          normalizedRangeHeader
+        });
+      } // Specifying multiple ranges separate by commas is valid syntax, but this
+      // library only attempts to handle a single, contiguous sequence of bytes.
+      // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range#Syntax
+
+
+      if (normalizedRangeHeader.includes(',')) {
+        throw new WorkboxError_js.WorkboxError('single-range-only', {
+          normalizedRangeHeader
+        });
+      }
+
+      const rangeParts = /(\d*)-(\d*)/.exec(normalizedRangeHeader); // We need either at least one of the start or end values.
+
+      if (!rangeParts || !(rangeParts[1] || rangeParts[2])) {
+        throw new WorkboxError_js.WorkboxError('invalid-range-values', {
+          normalizedRangeHeader
+        });
+      }
+
+      return {
+        start: rangeParts[1] === '' ? undefined : Number(rangeParts[1]),
+        end: rangeParts[2] === '' ? undefined : Number(rangeParts[2])
+      };
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Given a `Request` and `Response` objects as input, this will return a
+     * promise for a new `Response`.
+     *
+     * If the original `Response` already contains partial content (i.e. it has
+     * a status of 206), then this assumes it already fulfills the `Range:`
+     * requirements, and will return it as-is.
+     *
+     * @param {Request} request A request, which should contain a Range:
+     * header.
+     * @param {Response} originalResponse A response.
+     * @return {Promise<Response>} Either a `206 Partial Content` response, with
+     * the response body set to the slice of content specified by the request's
+     * `Range:` header, or a `416 Range Not Satisfiable` response if the
+     * conditions of the `Range:` header can't be met.
+     *
+     * @memberof module:workbox-range-requests
+     */
+
+    async function createPartialResponse(request, originalResponse) {
+      try {
+        if ("dev" !== 'production') {
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-range-requests',
+            funcName: 'createPartialResponse',
+            paramName: 'request'
+          });
+          assert_js.assert.isInstance(originalResponse, Response, {
+            moduleName: 'workbox-range-requests',
+            funcName: 'createPartialResponse',
+            paramName: 'originalResponse'
+          });
+        }
+
+        if (originalResponse.status === 206) {
+          // If we already have a 206, then just pass it through as-is;
+          // see https://github.com/GoogleChrome/workbox/issues/1720
+          return originalResponse;
+        }
+
+        const rangeHeader = request.headers.get('range');
+
+        if (!rangeHeader) {
+          throw new WorkboxError_js.WorkboxError('no-range-header');
+        }
+
+        const boundaries = parseRangeHeader(rangeHeader);
+        const originalBlob = await originalResponse.blob();
+        const effectiveBoundaries = calculateEffectiveBoundaries(originalBlob, boundaries.start, boundaries.end);
+        const slicedBlob = originalBlob.slice(effectiveBoundaries.start, effectiveBoundaries.end);
+        const slicedBlobSize = slicedBlob.size;
+        const slicedResponse = new Response(slicedBlob, {
+          // Status code 206 is for a Partial Content response.
+          // See https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/206
+          status: 206,
+          statusText: 'Partial Content',
+          headers: originalResponse.headers
+        });
+        slicedResponse.headers.set('Content-Length', String(slicedBlobSize));
+        slicedResponse.headers.set('Content-Range', `bytes ${effectiveBoundaries.start}-${effectiveBoundaries.end - 1}/` + originalBlob.size);
+        return slicedResponse;
+      } catch (error) {
+        {
+          logger_js.logger.warn(`Unable to construct a partial response; returning a ` + `416 Range Not Satisfiable response instead.`);
+          logger_js.logger.groupCollapsed(`View details here.`);
+          logger_js.logger.log(error);
+          logger_js.logger.log(request);
+          logger_js.logger.log(originalResponse);
+          logger_js.logger.groupEnd();
+        }
+
+        return new Response('', {
+          status: 416,
+          statusText: 'Range Not Satisfiable'
+        });
+      }
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * The range request plugin makes it easy for a request with a 'Range' header to
+     * be fulfilled by a cached response.
+     *
+     * It does this by intercepting the `cachedResponseWillBeUsed` plugin callback
+     * and returning the appropriate subset of the cached response body.
+     *
+     * @memberof module:workbox-range-requests
+     */
+
+    class RangeRequestsPlugin {
+      constructor() {
+        /**
+         * @param {Object} options
+         * @param {Request} options.request The original request, which may or may not
+         * contain a Range: header.
+         * @param {Response} options.cachedResponse The complete cached response.
+         * @return {Promise<Response>} If request contains a 'Range' header, then a
+         * new response with status 206 whose body is a subset of `cachedResponse` is
+         * returned. Otherwise, `cachedResponse` is returned as-is.
+         *
+         * @private
+         */
+        this.cachedResponseWillBeUsed = async ({
+          request,
+          cachedResponse
+        }) => {
+          // Only return a sliced response if there's something valid in the cache,
+          // and there's a Range: header in the request.
+          if (cachedResponse && request.headers.has('range')) {
+            return await createPartialResponse(request, cachedResponse);
+          } // If there was no Range: header, or if cachedResponse wasn't valid, just
+          // pass it through as-is.
+
+
+          return cachedResponse;
+        };
+      }
+
+    }
+
+    exports.RangeRequestsPlugin = RangeRequestsPlugin;
+    exports.createPartialResponse = createPartialResponse;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private));
+//# sourceMappingURL=workbox-range-requests.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-range-requests.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-range-requests.dev.js","sources":["../_version.js","../utils/calculateEffectiveBoundaries.js","../utils/parseRangeHeader.js","../createPartialResponse.js","../RangeRequestsPlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:range-requests:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport '../_version.js';\n/**\n * @param {Blob} blob A source blob.\n * @param {number} [start] The offset to use as the start of the\n * slice.\n * @param {number} [end] The offset to use as the end of the slice.\n * @return {Object} An object with `start` and `end` properties, reflecting\n * the effective boundaries to use given the size of the blob.\n *\n * @private\n */\nfunction calculateEffectiveBoundaries(blob, start, end) {\n    if (process.env.NODE_ENV !== 'production') {\n        assert.isInstance(blob, Blob, {\n            moduleName: 'workbox-range-requests',\n            funcName: 'calculateEffectiveBoundaries',\n            paramName: 'blob',\n        });\n    }\n    const blobSize = blob.size;\n    if ((end && end > blobSize) || (start && start < 0)) {\n        throw new WorkboxError('range-not-satisfiable', {\n            size: blobSize,\n            end,\n            start,\n        });\n    }\n    let effectiveStart;\n    let effectiveEnd;\n    if (start !== undefined && end !== undefined) {\n        effectiveStart = start;\n        // Range values are inclusive, so add 1 to the value.\n        effectiveEnd = end + 1;\n    }\n    else if (start !== undefined && end === undefined) {\n        effectiveStart = start;\n        effectiveEnd = blobSize;\n    }\n    else if (end !== undefined && start === undefined) {\n        effectiveStart = blobSize - end;\n        effectiveEnd = blobSize;\n    }\n    return {\n        start: effectiveStart,\n        end: effectiveEnd,\n    };\n}\nexport { calculateEffectiveBoundaries };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport '../_version.js';\n/**\n * @param {string} rangeHeader A Range: header value.\n * @return {Object} An object with `start` and `end` properties, reflecting\n * the parsed value of the Range: header. If either the `start` or `end` are\n * omitted, then `null` will be returned.\n *\n * @private\n */\nfunction parseRangeHeader(rangeHeader) {\n    if (process.env.NODE_ENV !== 'production') {\n        assert.isType(rangeHeader, 'string', {\n            moduleName: 'workbox-range-requests',\n            funcName: 'parseRangeHeader',\n            paramName: 'rangeHeader',\n        });\n    }\n    const normalizedRangeHeader = rangeHeader.trim().toLowerCase();\n    if (!normalizedRangeHeader.startsWith('bytes=')) {\n        throw new WorkboxError('unit-must-be-bytes', { normalizedRangeHeader });\n    }\n    // Specifying multiple ranges separate by commas is valid syntax, but this\n    // library only attempts to handle a single, contiguous sequence of bytes.\n    // https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Range#Syntax\n    if (normalizedRangeHeader.includes(',')) {\n        throw new WorkboxError('single-range-only', { normalizedRangeHeader });\n    }\n    const rangeParts = /(\\d*)-(\\d*)/.exec(normalizedRangeHeader);\n    // We need either at least one of the start or end values.\n    if (!rangeParts || !(rangeParts[1] || rangeParts[2])) {\n        throw new WorkboxError('invalid-range-values', { normalizedRangeHeader });\n    }\n    return {\n        start: rangeParts[1] === '' ? undefined : Number(rangeParts[1]),\n        end: rangeParts[2] === '' ? undefined : Number(rangeParts[2]),\n    };\n}\nexport { parseRangeHeader };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { calculateEffectiveBoundaries } from './utils/calculateEffectiveBoundaries.js';\nimport { parseRangeHeader } from './utils/parseRangeHeader.js';\nimport './_version.js';\n/**\n * Given a `Request` and `Response` objects as input, this will return a\n * promise for a new `Response`.\n *\n * If the original `Response` already contains partial content (i.e. it has\n * a status of 206), then Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-range-requests.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.rangeRequests=function(t,e,n){"use strict";try{self["workbox:range-requests:5.1.4"]&&_()}catch(t){}async function r(t,n){try{if(206===n.status)return n;const r=t.headers.get("range");if(!r)throw new e.WorkboxError("no-range-header");const s=function(t){const n=t.trim().toLowerCase();if(!n.startsWith("bytes="))throw new e.WorkboxError("unit-must-be-bytes",{normalizedRangeHeader:n});if(n.includes(","))throw new e.WorkboxError("single-range-only",{normalizedRangeHeader:n});const r=/(\d*)-(\d*)/.exec(n);if(!r||!r[1]&&!r[2])throw new e.WorkboxError("invalid-range-values",{normalizedRangeHeader:n});return{start:""===r[1]?void 0:Number(r[1]),end:""===r[2]?void 0:Number(r[2])}}(r),a=await n.blob(),o=function(t,n,r){const s=t.size;if(r&&r>s||n&&n<0)throw new e.WorkboxError("range-not-satisfiable",{size:s,end:r,start:n});let a,o;return void 0!==n&&void 0!==r?(a=n,o=r+1):void 0!==n&&void 0===r?(a=n,o=s):void 0!==r&&void 0===n&&(a=s-r,o=s),{start:a,end:o}}(a,s.start,s.end),i=a.slice(o.start,o.end),d=i.size,u=new Response(i,{status:206,statusText:"Partial Content",headers:n.headers});return u.headers.set("Content-Length",String(d)),u.headers.set("Content-Range",`bytes ${o.start}-${o.end-1}/`+a.size),u}catch(t){return new Response("",{status:416,statusText:"Range Not Satisfiable"})}}return t.RangeRequestsPlugin=class{constructor(){this.cachedResponseWillBeUsed=async({request:t,cachedResponse:e})=>e&&t.headers.has("range")?await r(t,e):e}},t.createPartialResponse=r,t}({},workbox.core._private,workbox.core._private);
+//# sourceMappingURL=workbox-range-requests.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-range-requests.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-range-requests.prod.js","sources":["../_version.js","../createPartialResponse.js","../utils/parseRangeHeader.js","../utils/calculateEffectiveBoundaries.js","../RangeRequestsPlugin.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:range-requests:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { calculateEffectiveBoundaries } from './utils/calculateEffectiveBoundaries.js';\nimport { parseRangeHeader } from './utils/parseRangeHeader.js';\nimport './_version.js';\n/**\n * Given a `Request` and `Response` objects as input, this will return a\n * promise for a new `Response`.\n *\n * If the original `Response` already contains partial content (i.e. it has\n * a status of 206), then this assumes it already fulfills the `Range:`\n * requirements, and will return it as-is.\n *\n * @param {Request} request A request, which should contain a Range:\n * header.\n * @param {Response} originalResponse A response.\n * @return {Promise<Response>} Either a `206 Partial Content` response, with\n * the response body set to the slice of content specified by the request's\n * `Range:` header, or a `416 Range Not Satisfiable` response if the\n * conditions of the `Range:` header can't be met.\n *\n * @memberof module:workbox-range-requests\n */\nasync function createPartialResponse(request, originalResponse) {\n    try {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isInstance(request, Request, {\n                moduleName: 'workbox-range-requests',\n                funcName: 'createPartialResponse',\n                paramName: 'request',\n            });\n            assert.isInstance(originalResponse, Response, {\n                moduleName: 'workbox-range-requests',\n                funcName: 'createPartialResponse',\n                paramName: 'originalResponse',\n            });\n        }\n        if (originalResponse.status === 206) {\n            // If we already have a 206, then just pass it through as-is;\n            // see https://github.com/GoogleChrome/workbox/issues/1720\n            return originalResponse;\n        }\n        const rangeHeader = request.headers.get('range');\n        if (!rangeHeader) {\n            throw new WorkboxError('no-range-header');\n        }\n        const boundaries = parseRangeHeader(rangeHeader);\n        const originalBlob = await originalResponse.blob();\n        const effectiveBoundaries = calculateEffectiveBoundaries(originalBlob, boundaries.start, boundaries.end);\n        const slicedBlob = originalBlob.slice(effectiveBoundaries.start, effectiveBoundaries.end);\n        const slicedBlobSize = slicedBlob.size;\n        const slicedResponse = new Response(slicedBlob, {\n            // Status code 206 is for a Partial Content response.\n            // See https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/206\n            status: 206,\n            statusText: 'Partial Content',\n            headers: originalResponse.headers,\n        });\n        slicedResponse.headers.set('Content-Length', String(slicedBlobSize));\n        slicedResponse.headers.set('Content-Range', `bytes ${effectiveBoundaries.start}-${effectiveBoundaries.end - 1}/` +\n            originalBlob.size);\n        return slicedResponse;\n    }\n    catch (error) {\n        if (process.env.NODE_ENV !== 'production') {\n            logger.warn(`Unable to construct a partial response; returning a ` +\n                `416 Range Not Satisfiable response instead.`);\n            logger.groupCollapsed(`View details here.`);\n            logger.log(error);\n            logger.log(request);\n            logger.log(originalResponse);\n            logger.groupEnd();\n        }\n        return new Response('', {\n            status: 416,\n            statusText: 'Range Not Satisfiable',\n        });\n    }\n}\nexport { createPartialResponse };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport '../_version.js';\n/**\n * @param {string} rangeHeader A Range: header value.\n * @return {Object} An object with `start` and `end` properties, reflecting\n * the parsed value of the Range: header. If either the `start` or `end` are\n * omitted, then `null` will be returned.\n *\n * @private\n */\nfunction parseRangeHeader(rangeHeader) {\n    if (process.env.NODE_ENV !== 'production') {\n        assertLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-routing.dev.js

@@ -0,0 +1,923 @@
+this.workbox = this.workbox || {};
+this.workbox.routing = (function (exports, assert_js, logger_js, WorkboxError_js, getFriendlyURL_js) {
+    'use strict';
+
+    try {
+      self['workbox:routing:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * The default HTTP method, 'GET', used when there's no specific method
+     * configured for a route.
+     *
+     * @type {string}
+     *
+     * @private
+     */
+
+    const defaultMethod = 'GET';
+    /**
+     * The list of valid HTTP methods associated with requests that could be routed.
+     *
+     * @type {Array<string>}
+     *
+     * @private
+     */
+
+    const validMethods = ['DELETE', 'GET', 'HEAD', 'PATCH', 'POST', 'PUT'];
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * @param {function()|Object} handler Either a function, or an object with a
+     * 'handle' method.
+     * @return {Object} An object with a handle method.
+     *
+     * @private
+     */
+
+    const normalizeHandler = handler => {
+      if (handler && typeof handler === 'object') {
+        {
+          assert_js.assert.hasMethod(handler, 'handle', {
+            moduleName: 'workbox-routing',
+            className: 'Route',
+            funcName: 'constructor',
+            paramName: 'handler'
+          });
+        }
+
+        return handler;
+      } else {
+        {
+          assert_js.assert.isType(handler, 'function', {
+            moduleName: 'workbox-routing',
+            className: 'Route',
+            funcName: 'constructor',
+            paramName: 'handler'
+          });
+        }
+
+        return {
+          handle: handler
+        };
+      }
+    };
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * A `Route` consists of a pair of callback functions, "match" and "handler".
+     * The "match" callback determine if a route should be used to "handle" a
+     * request by returning a non-falsy value if it can. The "handler" callback
+     * is called when there is a match and should return a Promise that resolves
+     * to a `Response`.
+     *
+     * @memberof module:workbox-routing
+     */
+
+    class Route {
+      /**
+       * Constructor for Route class.
+       *
+       * @param {module:workbox-routing~matchCallback} match
+       * A callback function that determines whether the route matches a given
+       * `fetch` event by returning a non-falsy value.
+       * @param {module:workbox-routing~handlerCallback} handler A callback
+       * function that returns a Promise resolving to a Response.
+       * @param {string} [method='GET'] The HTTP method to match the Route
+       * against.
+       */
+      constructor(match, handler, method = defaultMethod) {
+        {
+          assert_js.assert.isType(match, 'function', {
+            moduleName: 'workbox-routing',
+            className: 'Route',
+            funcName: 'constructor',
+            paramName: 'match'
+          });
+
+          if (method) {
+            assert_js.assert.isOneOf(method, validMethods, {
+              paramName: 'method'
+            });
+          }
+        } // These values are referenced directly by Router so cannot be
+        // altered by minificaton.
+
+
+        this.handler = normalizeHandler(handler);
+        this.match = match;
+        this.method = method;
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * NavigationRoute makes it easy to create a
+     * [Route]{@link module:workbox-routing.Route} that matches for browser
+     * [navigation requests]{@link https://developers.google.com/web/fundamentals/primers/service-workers/high-performance-loading#first_what_are_navigation_requests}.
+     *
+     * It will only match incoming Requests whose
+     * [`mode`]{@link https://fetch.spec.whatwg.org/#concept-request-mode}
+     * is set to `navigate`.
+     *
+     * You can optionally only apply this route to a subset of navigation requests
+     * by using one or both of the `denylist` and `allowlist` parameters.
+     *
+     * @memberof module:workbox-routing
+     * @extends module:workbox-routing.Route
+     */
+
+    class NavigationRoute extends Route {
+      /**
+       * If both `denylist` and `allowlist` are provided, the `denylist` will
+       * take precedence and the request will not match this route.
+       *
+       * The regular expressions in `allowlist` and `denylist`
+       * are matched against the concatenated
+       * [`pathname`]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLHyperlinkElementUtils/pathname}
+       * and [`search`]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLHyperlinkElementUtils/search}
+       * portions of the requested URL.
+       *
+       * @param {module:workbox-routing~handlerCallback} handler A callback
+       * function that returns a Promise resulting in a Response.
+       * @param {Object} options
+       * @param {Array<RegExp>} [options.denylist] If any of these patterns match,
+       * the route will not handle the request (even if a allowlist RegExp matches).
+       * @param {Array<RegExp>} [options.allowlist=[/./]] If any of these patterns
+       * match the URL's pathname and search parameter, the route will handle the
+       * request (assuming the denylist doesn't match).
+       */
+      constructor(handler, {
+        allowlist = [/./],
+        denylist = []
+      } = {}) {
+        {
+          assert_js.assert.isArrayOfClass(allowlist, RegExp, {
+            moduleName: 'workbox-routing',
+            className: 'NavigationRoute',
+            funcName: 'constructor',
+            paramName: 'options.allowlist'
+          });
+          assert_js.assert.isArrayOfClass(denylist, RegExp, {
+            moduleName: 'workbox-routing',
+            className: 'NavigationRoute',
+            funcName: 'constructor',
+            paramName: 'options.denylist'
+          });
+        }
+
+        super(options => this._match(options), handler);
+        this._allowlist = allowlist;
+        this._denylist = denylist;
+      }
+      /**
+       * Routes match handler.
+       *
+       * @param {Object} options
+       * @param {URL} options.url
+       * @param {Request} options.request
+       * @return {boolean}
+       *
+       * @private
+       */
+
+
+      _match({
+        url,
+        request
+      }) {
+        if (request && request.mode !== 'navigate') {
+          return false;
+        }
+
+        const pathnameAndSearch = url.pathname + url.search;
+
+        for (const regExp of this._denylist) {
+          if (regExp.test(pathnameAndSearch)) {
+            {
+              logger_js.logger.log(`The navigation route ${pathnameAndSearch} is not ` + `being used, since the URL matches this denylist pattern: ` + `${regExp}`);
+            }
+
+            return false;
+          }
+        }
+
+        if (this._allowlist.some(regExp => regExp.test(pathnameAndSearch))) {
+          {
+            logger_js.logger.debug(`The navigation route ${pathnameAndSearch} ` + `is being used.`);
+          }
+
+          return true;
+        }
+
+        {
+          logger_js.logger.log(`The navigation route ${pathnameAndSearch} is not ` + `being used, since the URL being navigated to doesn't ` + `match the allowlist.`);
+        }
+
+        return false;
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * RegExpRoute makes it easy to create a regular expression based
+     * [Route]{@link module:workbox-routing.Route}.
+     *
+     * For same-origin requests the RegExp only needs to match part of the URL. For
+     * requests against third-party servers, you must define a RegExp that matches
+     * the start of the URL.
+     *
+     * [See the module docs for info.]{@link https://developers.google.com/web/tools/workbox/modules/workbox-routing}
+     *
+     * @memberof module:workbox-routing
+     * @extends module:workbox-routing.Route
+     */
+
+    class RegExpRoute extends Route {
+      /**
+       * If the regular expression contains
+       * [capture groups]{@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#grouping-back-references},
+       * the captured values will be passed to the
+       * [handler's]{@link module:workbox-routing~handlerCallback} `params`
+       * argument.
+       *
+       * @param {RegExp} regExp The regular expression to match against URLs.
+       * @param {module:workbox-routing~handlerCallback} handler A callback
+       * function that returns a Promise resulting in a Response.
+       * @param {string} [method='GET'] The HTTP method to match the Route
+       * against.
+       */
+      constructor(regExp, handler, method) {
+        {
+          assert_js.assert.isInstance(regExp, RegExp, {
+            moduleName: 'workbox-routing',
+            className: 'RegExpRoute',
+            funcName: 'constructor',
+            paramName: 'pattern'
+          });
+        }
+
+        const match = ({
+          url
+        }) => {
+          const result = regExp.exec(url.href); // Return immediately if there's no match.
+
+          if (!result) {
+            return;
+          } // Require that the match start at the first character in the URL string
+          // if it's a cross-origin request.
+          // See https://github.com/GoogleChrome/workbox/issues/281 for the context
+          // behind this behavior.
+
+
+          if (url.origin !== location.origin && result.index !== 0) {
+            {
+              logger_js.logger.debug(`The regular expression '${regExp}' only partially matched ` + `against the cross-origin URL '${url}'. RegExpRoute's will only ` + `handle cross-origin requests if they match the entire URL.`);
+            }
+
+            return;
+          } // If the route matches, but there aren't any capture groups defined, then
+          // this will return [], which is truthy and therefore sufficient to
+          // indicate a match.
+          // If there are capture groups, then it will return their values.
+
+
+          return result.slice(1);
+        };
+
+        super(match, handler, method);
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * The Router can be used to process a FetchEvent through one or more
+     * [Routes]{@link module:workbox-routing.Route} responding  with a Request if
+     * a matching route exists.
+     *
+     * If no route matches a given a request, the Router will use a "default"
+     * handler if one is defined.
+     *
+     * Should the matching Route throw an error, the Router will use a "catch"
+     * handler if one is defined to gracefully deal with issues and respond with a
+     * Request.
+     *
+     * If a request matches multiple routes, the **earliest** registered route will
+     * be used to respond to the request.
+     *
+     * @memberof module:workbox-routing
+     */
+
+    class Router {
+      /**
+       * Initializes a new Router.
+       */
+      constructor() {
+        this._routes = new Map();
+      }
+      /**
+       * @return {Map<string, Array<module:workbox-routing.Route>>} routes A `Map` of HTTP
+       * method name ('GET', etc.) to an array of all the corresponding `Route`
+       * instances that are registered.
+       */
+
+
+      get routes() {
+        return this._routes;
+      }
+      /**
+       * Adds a fetch event listener to respond to events when a route matches
+       * the event's request.
+       */
+
+
+      addFetchListener() {
+        // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
+        self.addEventListener('fetch', event => {
+          const {
+            request
+          } = event;
+          const responsePromise = this.handleRequest({
+            request,
+            event
+          });
+
+          if (responsePromise) {
+            event.respondWith(responsePromise);
+          }
+        });
+      }
+      /**
+       * Adds a message event listener for URLs to cache from the window.
+       * This is useful to cache resources loaded on the page prior to when the
+       * service worker started controlling it.
+       *
+       * The format of the message data sent from the window should be as follows.
+       * Where the `urlsToCache` array may consist of URL strings or an array of
+       * URL string + `requestInit` object (the same as you'd pass to `fetch()`).
+       *
+       * ```
+       * {
+       *   type: 'CACHE_URLS',
+       *   payload: {
+       *     urlsToCache: [
+       *       './script1.js',
+       *       './script2.js',
+       *       ['./script3.js', {mode: 'no-cors'}],
+       *     ],
+       *   },
+       * }
+       * ```
+       */
+
+
+      addCacheListener() {
+        // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
+        self.addEventListener('message', event => {
+          if (event.data && event.data.type === 'CACHE_URLS') {
+            const {
+              payload
+            } = event.data;
+
+            {
+              logger_js.logger.debug(`Caching URLs from the window`, payload.urlsToCache);
+            }
+
+            const requestPromises = Promise.all(payload.urlsToCache.map(entry => {
+              if (typeof entry === 'string') {
+                entry = [entry];
+              }
+
+              const request = new Request(...entry);
+              return this.handleRequest({
+                request
+              }); // TODO(philipwalton): TypeScript errors without this typecast for
+              // some reason (probably a bug). The real type here should work but
+              // doesn't: `Array<Promise<Response> | undefined>`.
+            })); // TypeScript
+
+            event.waitUntil(requestPromises); // If a MessageChannel was used, reply to the message on success.
+
+            if (event.ports && event.ports[0]) {
+              requestPromises.then(() => event.ports[0].postMessage(true));
+            }
+          }
+        });
+      }
+      /**
+       * Apply the routing rules to a FetchEvent object to get a Response from an
+       * appropriate Route's handler.
+       *
+       * @param {Object} options
+       * @param {Request} options.request The request to handle (this is usually
+       *     from a fetch event, but it does not have to be).
+       * @param {FetchEvent} [options.event] The event that triggered the request,
+       *     if applicable.
+       * @return {Promise<Response>|undefined} A promise is returned if a
+       *     registered route can handle the request. If there is no matching
+       *     route and there's no `defaultHandler`, `undefined` is returned.
+       */
+
+
+      handleRequest({
+        request,
+        event
+      }) {
+        {
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'handleRequest',
+            paramName: 'options.request'
+          });
+        }
+
+        const url = new URL(request.url, location.href);
+
+        if (!url.protocol.startsWith('http')) {
+          {
+            logger_js.logger.debug(`Workbox Router only supports URLs that start with 'http'.`);
+          }
+
+          return;
+        }
+
+        const {
+          params,
+          route
+        } = this.findMatchingRoute({
+          url,
+          request,
+          event
+        });
+        let handler = route && route.handler;
+        const debugMessages = [];
+
+        {
+          if (handler) {
+            debugMessages.push([`Found a route to handle this request:`, route]);
+
+            if (params) {
+              debugMessages.push([`Passing the following params to the route's handler:`, params]);
+            }
+          }
+        } // If we don't have a handler because there was no matching route, then
+        // fall back to defaultHandler if that's defined.
+
+
+        if (!handler && this._defaultHandler) {
+          {
+            debugMessages.push(`Failed to find a matching route. Falling ` + `back to the default handler.`);
+          }
+
+          handler = this._defaultHandler;
+        }
+
+        if (!handler) {
+          {
+            // No handler so Workbox will do nothing. If logs is set of debug
+            // i.e. verbose, we should print out this information.
+            logger_js.logger.debug(`No route found for: ${getFriendlyURL_js.getFriendlyURL(url)}`);
+          }
+
+          return;
+        }
+
+        {
+          // We have a handler, meaning Workbox is going to handle the route.
+          // print the routing details to the console.
+          logger_js.logger.groupCollapsed(`Router is responding to: ${getFriendlyURL_js.getFriendlyURL(url)}`);
+          debugMessages.forEach(msg => {
+            if (Array.isArray(msg)) {
+              logger_js.logger.log(...msg);
+            } else {
+              logger_js.logger.log(msg);
+            }
+          });
+          logger_js.logger.groupEnd();
+        } // Wrap in try and catch in case the handle method throws a synchronous
+        // error. It should still callback to the catch handler.
+
+
+        let responsePromise;
+
+        try {
+          responsePromise = handler.handle({
+            url,
+            request,
+            event,
+            params
+          });
+        } catch (err) {
+          responsePromise = Promise.reject(err);
+        }
+
+        if (responsePromise instanceof Promise && this._catchHandler) {
+          responsePromise = responsePromise.catch(err => {
+            {
+              // Still include URL here as it will be async from the console group
+              // and may not make sense without the URL
+              logger_js.logger.groupCollapsed(`Error thrown when responding to: ` + ` ${getFriendlyURL_js.getFriendlyURL(url)}. Falling back to Catch Handler.`);
+              logger_js.logger.error(`Error thrown by:`, route);
+              logger_js.logger.error(err);
+              logger_js.logger.groupEnd();
+            }
+
+            return this._catchHandler.handle({
+              url,
+              request,
+              event
+            });
+          });
+        }
+
+        return responsePromise;
+      }
+      /**
+       * Checks a request and URL (and optionally an event) against the list of
+       * registered routes, and if there's a match, returns the corresponding
+       * route along with any params generated by the match.
+       *
+       * @param {Object} options
+       * @param {URL} options.url
+       * @param {Request} options.request The request to match.
+       * @param {Event} [options.event] The corresponding event (unless N/A).
+       * @return {Object} An object with `route` and `params` properties.
+       *     They are populated if a matching route was found or `undefined`
+       *     otherwise.
+       */
+
+
+      findMatchingRoute({
+        url,
+        request,
+        event
+      }) {
+        {
+          assert_js.assert.isInstance(url, URL, {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'findMatchingRoute',
+            paramName: 'options.url'
+          });
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'findMatchingRoute',
+            paramName: 'options.request'
+          });
+        }
+
+        const routes = this._routes.get(request.method) || [];
+
+        for (const route of routes) {
+          let params;
+          const matchResult = route.match({
+            url,
+            request,
+            event
+          });
+
+          if (matchResult) {
+            // See https://github.com/GoogleChrome/workbox/issues/2079
+            params = matchResult;
+
+            if (Array.isArray(matchResult) && matchResult.length === 0) {
+              // Instead of passing an empty array in as params, use undefined.
+              params = undefined;
+            } else if (matchResult.constructor === Object && Object.keys(matchResult).length === 0) {
+              // Instead of passing an empty object in as params, use undefined.
+              params = undefined;
+            } else if (typeof matchResult === 'boolean') {
+              // For the boolean value true (rather than just something truth-y),
+              // don't set params.
+              // See https://github.com/GoogleChrome/workbox/pull/2134#issuecomment-513924353
+              params = undefined;
+            } // Return early if have a match.
+
+
+            return {
+              route,
+              params
+            };
+          }
+        } // If no match was found above, return and empty object.
+
+
+        return {};
+      }
+      /**
+       * Define a default `handler` that's called when no routes explicitly
+       * match the incoming request.
+       *
+       * Without a default handler, unmatched requests will go against the
+       * network as if there were no service worker present.
+       *
+       * @param {module:workbox-routing~handlerCallback} handler A callback
+       * function that returns a Promise resulting in a Response.
+       */
+
+
+      setDefaultHandler(handler) {
+        this._defaultHandler = normalizeHandler(handler);
+      }
+      /**
+       * If a Route throws an error while handling a request, this `handler`
+       * will be called and given a chance to provide a response.
+       *
+       * @param {module:workbox-routing~handlerCallback} handler A callback
+       * function that returns a Promise resulting in a Response.
+       */
+
+
+      setCatchHandler(handler) {
+        this._catchHandler = normalizeHandler(handler);
+      }
+      /**
+       * Registers a route with the router.
+       *
+       * @param {module:workbox-routing.Route} route The route to register.
+       */
+
+
+      registerRoute(route) {
+        {
+          assert_js.assert.isType(route, 'object', {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'registerRoute',
+            paramName: 'route'
+          });
+          assert_js.assert.hasMethod(route, 'match', {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'registerRoute',
+            paramName: 'route'
+          });
+          assert_js.assert.isType(route.handler, 'object', {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'registerRoute',
+            paramName: 'route'
+          });
+          assert_js.assert.hasMethod(route.handler, 'handle', {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'registerRoute',
+            paramName: 'route.handler'
+          });
+          assert_js.assert.isType(route.method, 'string', {
+            moduleName: 'workbox-routing',
+            className: 'Router',
+            funcName: 'registerRoute',
+            paramName: 'route.method'
+          });
+        }
+
+        if (!this._routes.has(route.method)) {
+          this._routes.set(route.method, []);
+        } // Give precedence to all of the earlier routes by adding this additional
+        // route to the end of the array.
+
+
+        this._routes.get(route.method).push(route);
+      }
+      /**
+       * Unregisters a route with the router.
+       *
+       * @param {module:workbox-routing.Route} route The route to unregister.
+       */
+
+
+      unregisterRoute(route) {
+        if (!this._routes.has(route.method)) {
+          throw new WorkboxError_js.WorkboxError('unregister-route-but-not-found-with-method', {
+            method: route.method
+          });
+        }
+
+        const routeIndex = this._routes.get(route.method).indexOf(route);
+
+        if (routeIndex > -1) {
+          this._routes.get(route.method).splice(routeIndex, 1);
+        } else {
+          throw new WorkboxError_js.WorkboxError('unregister-route-route-not-registered');
+        }
+      }
+
+    }
+
+    /*
+      Copyright 2019 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    let defaultRouter;
+    /**
+     * Creates a new, singleton Router instance if one does not exist. If one
+     * does already exist, that instance is returned.
+     *
+     * @private
+     * @return {Router}
+     */
+
+    const getOrCreateDefaultRouter = () => {
+      if (!defaultRouter) {
+        defaultRouter = new Router(); // The helpers that use the default Router assume these listeners exist.
+
+        defaultRouter.addFetchListener();
+        defaultRouter.addCacheListener();
+      }
+
+      return defaultRouter;
+    };
+
+    /*
+      Copyright 2019 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Easily register a RegExp, string, or function with a caching
+     * strategy to a singleton Router instance.
+     *
+     * This method will generate a Route for you if needed and
+     * call [registerRoute()]{@link module:workbox-routing.Router#registerRoute}.
+     *
+     * @param {RegExp|string|module:workbox-routing.Route~matchCallback|module:workbox-routing.Route} capture
+     * If the capture param is a `Route`, all other arguments will be ignored.
+     * @param {module:workbox-routing~handlerCallback} [handler] A callback
+     * function that returns a Promise resulting in a Response. This parameter
+     * is required if `capture` is not a `Route` object.
+     * @param {string} [method='GET'] The HTTP method to match the Route
+     * against.
+     * @return {module:workbox-routing.Route} The generated `Route`(Useful for
+     * unregistering).
+     *
+     * @memberof module:workbox-routing
+     */
+
+    function registerRoute(capture, handler, method) {
+      let route;
+
+      if (typeof capture === 'string') {
+        const captureUrl = new URL(capture, location.href);
+
+        {
+          if (!(capture.startsWith('/') || capture.startsWith('http'))) {
+            throw new WorkboxError_js.WorkboxError('invalid-string', {
+              moduleName: 'workbox-routing',
+              funcName: 'registerRoute',
+              paramName: 'capture'
+            });
+          } // We want to check if Express-style wildcards are in the pathname only.
+          // TODO: Remove this log message in v4.
+
+
+          const valueToCheck = capture.startsWith('http') ? captureUrl.pathname : capture; // See https://github.com/pillarjs/path-to-regexp#parameters
+
+          const wildcards = '[*:?+]';
+
+          if (new RegExp(`${wildcards}`).exec(valueToCheck)) {
+            logger_js.logger.debug(`The '$capture' parameter contains an Express-style wildcard ` + `character (${wildcards}). Strings are now always interpreted as ` + `exact matches; use a RegExp for partial or wildcard matches.`);
+          }
+        }
+
+        const matchCallback = ({
+          url
+        }) => {
+          {
+            if (url.pathname === captureUrl.pathname && url.origin !== captureUrl.origin) {
+              logger_js.logger.debug(`${capture} only partially matches the cross-origin URL ` + `${url}. This route will only handle cross-origin requests ` + `if they match the entire URL.`);
+            }
+          }
+
+          return url.href === captureUrl.href;
+        }; // If `capture` is a string then `handler` and `method` must be present.
+
+
+        route = new Route(matchCallback, handler, method);
+      } else if (capture instanceof RegExp) {
+        // If `capture` is a `RegExp` then `handler` and `method` must be present.
+        route = new RegExpRoute(capture, handler, method);
+      } else if (typeof capture === 'function') {
+        // If `capture` is a function then `handler` and `method` must be present.
+        route = new Route(capture, handler, method);
+      } else if (capture instanceof Route) {
+        route = capture;
+      } else {
+        throw new WorkboxError_js.WorkboxError('unsupported-route-type', {
+          moduleName: 'workbox-routing',
+          funcName: 'registerRoute',
+          paramName: 'capture'
+        });
+      }
+
+      const defaultRouter = getOrCreateDefaultRouter();
+      defaultRouter.registerRoute(route);
+      return route;
+    }
+
+    /*
+      Copyright 2019 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * If a Route throws an error while handling a request, this `handler`
+     * will be called and given a chance to provide a response.
+     *
+     * @param {module:workbox-routing~handlerCallback} handler A callback
+     * function that returns a Promise resulting in a Response.
+     *
+     * @memberof module:workbox-routing
+     */
+
+    function setCatchHandler(handler) {
+      const defaultRouter = getOrCreateDefaultRouter();
+      defaultRouter.setCatchHandler(handler);
+    }
+
+    /*
+      Copyright 2019 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Define a default `handler` that's called when no routes explicitly
+     * match the incoming request.
+     *
+     * Without a default handler, unmatched requests will go against the
+     * network as if there were no service worker present.
+     *
+     * @param {module:workbox-routing~handlerCallback} handler A callback
+     * function that returns a Promise resulting in a Response.
+     *
+     * @memberof module:workbox-routing
+     */
+
+    function setDefaultHandler(handler) {
+      const defaultRouter = getOrCreateDefaultRouter();
+      defaultRouter.setDefaultHandler(handler);
+    }
+
+    exports.NavigationRoute = NavigationRoute;
+    exports.RegExpRoute = RegExpRoute;
+    exports.Route = Route;
+    exports.Router = Router;
+    exports.registerRoute = registerRoute;
+    exports.setCatchHandler = setCatchHandler;
+    exports.setDefaultHandler = setDefaultHandler;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
+//# sourceMappingURL=workbox-routing.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-routing.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-routing.dev.js","sources":["../_version.js","../utils/constants.js","../utils/normalizeHandler.js","../Route.js","../NavigationRoute.js","../RegExpRoute.js","../Router.js","../utils/getOrCreateDefaultRouter.js","../registerRoute.js","../setCatchHandler.js","../setDefaultHandler.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:routing:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\n/**\n * The default HTTP method, 'GET', used when there's no specific method\n * configured for a route.\n *\n * @type {string}\n *\n * @private\n */\nexport const defaultMethod = 'GET';\n/**\n * The list of valid HTTP methods associated with requests that could be routed.\n *\n * @type {Array<string>}\n *\n * @private\n */\nexport const validMethods = [\n    'DELETE',\n    'GET',\n    'HEAD',\n    'PATCH',\n    'POST',\n    'PUT',\n];\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport '../_version.js';\n/**\n * @param {function()|Object} handler Either a function, or an object with a\n * 'handle' method.\n * @return {Object} An object with a handle method.\n *\n * @private\n */\nexport const normalizeHandler = (handler) => {\n    if (handler && typeof handler === 'object') {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.hasMethod(handler, 'handle', {\n                moduleName: 'workbox-routing',\n                className: 'Route',\n                funcName: 'constructor',\n                paramName: 'handler',\n            });\n        }\n        return handler;\n    }\n    else {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(handler, 'function', {\n                moduleName: 'workbox-routing',\n                className: 'Route',\n                funcName: 'constructor',\n                paramName: 'handler',\n            });\n        }\n        return { handle: handler };\n    }\n};\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { defaultMethod, validMethods } from './utils/constants.js';\nimport { normalizeHandler } from './utils/normalizeHandler.js';\nimport './_version.js';\n/**\n * A `Route` consists of a pair of callback functions, \"match\" and \"handler\".\n * The \"match\" callback determine if a route should be used to \"handle\" a\n * request by returning a non-falsy value if it can. The \"handler\" callback\n * is called when there is a match and should return a Promise that resolves\n * to a `Response`.\n *\n * @memberof module:workbox-routing\n */\nclass Route {\n    /**\n     * Constructor for Route class.\n     *\n     * @param {module:workbox-routing~matchCallback} match\n     * A callback function that determines whether the route matches a given\n     * `fetch` event by returning a non-falsy value.\n     * @param {module:workbox-routing~handlerCallback} handler A callback\n     * function that returns a Promise resolving to a Response.\n     * @param {string} [method='GET'] The HTTP method to match the Route\n     * against.\n     */\n    constructor(match, handler, method = defaultMethod) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(match, 'function', {\n                moduleName: 'workbox-routing',\n                className: 'Route',\n                funcName: 'constructor',\n                paramName: 'match',\n            });\n            if (method) {\n                assert.isOneOf(method, validMethods, { paramName: 'method' });\n            }\n        }\n        // These values are referenced directly by Router so cannot be\n        // altered by minificaton.\n        this.handler = normalizeHandler(handler);\n        this.match = match;\n        this.method = method;\n    }\n}\nexport { Route };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { Route } from './Route.js';\nimport './_version.js';\n/**\n * NavigationRoute makes it easy to create a\n * [Route]{@link module:workbox-routing.Route} that matches for browser\n * [navigation requests]{@link https://developers.google.com/web/fundamentals/primers/service-workers/high-performance-loading#first_what_are_nLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-routing.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.routing=function(t,e){"use strict";try{self["workbox:routing:5.1.4"]&&_()}catch(t){}const s=t=>t&&"object"==typeof t?t:{handle:t};class r{constructor(t,e,r="GET"){this.handler=s(e),this.match=t,this.method=r}}class n extends r{constructor(t,e,s){super(({url:e})=>{const s=t.exec(e.href);if(s&&(e.origin===location.origin||0===s.index))return s.slice(1)},e,s)}}class o{constructor(){this.t=new Map}get routes(){return this.t}addFetchListener(){self.addEventListener("fetch",t=>{const{request:e}=t,s=this.handleRequest({request:e,event:t});s&&t.respondWith(s)})}addCacheListener(){self.addEventListener("message",t=>{if(t.data&&"CACHE_URLS"===t.data.type){const{payload:e}=t.data,s=Promise.all(e.urlsToCache.map(t=>{"string"==typeof t&&(t=[t]);const e=new Request(...t);return this.handleRequest({request:e})}));t.waitUntil(s),t.ports&&t.ports[0]&&s.then(()=>t.ports[0].postMessage(!0))}})}handleRequest({request:t,event:e}){const s=new URL(t.url,location.href);if(!s.protocol.startsWith("http"))return;const{params:r,route:n}=this.findMatchingRoute({url:s,request:t,event:e});let o,i=n&&n.handler;if(!i&&this.s&&(i=this.s),i){try{o=i.handle({url:s,request:t,event:e,params:r})}catch(t){o=Promise.reject(t)}return o instanceof Promise&&this.o&&(o=o.catch(r=>this.o.handle({url:s,request:t,event:e}))),o}}findMatchingRoute({url:t,request:e,event:s}){const r=this.t.get(e.method)||[];for(const n of r){let r;const o=n.match({url:t,request:e,event:s});if(o)return r=o,(Array.isArray(o)&&0===o.length||o.constructor===Object&&0===Object.keys(o).length||"boolean"==typeof o)&&(r=void 0),{route:n,params:r}}return{}}setDefaultHandler(t){this.s=s(t)}setCatchHandler(t){this.o=s(t)}registerRoute(t){this.t.has(t.method)||this.t.set(t.method,[]),this.t.get(t.method).push(t)}unregisterRoute(t){if(!this.t.has(t.method))throw new e.WorkboxError("unregister-route-but-not-found-with-method",{method:t.method});const s=this.t.get(t.method).indexOf(t);if(!(s>-1))throw new e.WorkboxError("unregister-route-route-not-registered");this.t.get(t.method).splice(s,1)}}let i;const u=()=>(i||(i=new o,i.addFetchListener(),i.addCacheListener()),i);return t.NavigationRoute=class extends r{constructor(t,{allowlist:e=[/./],denylist:s=[]}={}){super(t=>this.i(t),t),this.u=e,this.h=s}i({url:t,request:e}){if(e&&"navigate"!==e.mode)return!1;const s=t.pathname+t.search;for(const t of this.h)if(t.test(s))return!1;return!!this.u.some(t=>t.test(s))}},t.RegExpRoute=n,t.Route=r,t.Router=o,t.registerRoute=function(t,s,o){let i;if("string"==typeof t){const e=new URL(t,location.href);i=new r(({url:t})=>t.href===e.href,s,o)}else if(t instanceof RegExp)i=new n(t,s,o);else if("function"==typeof t)i=new r(t,s,o);else{if(!(t instanceof r))throw new e.WorkboxError("unsupported-route-type",{moduleName:"workbox-routing",funcName:"registerRoute",paramName:"capture"});i=t}return u().registerRoute(i),i},t.setCatchHandler=function(t){u().setCatchHandler(t)},t.setDefaultHandler=function(t){u().setDefaultHandler(t)},t}({},workbox.core._private);
+//# sourceMappingURL=workbox-routing.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-routing.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-routing.prod.js","sources":["../_version.js","../utils/constants.js","../utils/normalizeHandler.js","../Route.js","../RegExpRoute.js","../Router.js","../utils/getOrCreateDefaultRouter.js","../NavigationRoute.js","../registerRoute.js","../setCatchHandler.js","../setDefaultHandler.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:routing:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\n/**\n * The default HTTP method, 'GET', used when there's no specific method\n * configured for a route.\n *\n * @type {string}\n *\n * @private\n */\nexport const defaultMethod = 'GET';\n/**\n * The list of valid HTTP methods associated with requests that could be routed.\n *\n * @type {Array<string>}\n *\n * @private\n */\nexport const validMethods = [\n    'DELETE',\n    'GET',\n    'HEAD',\n    'PATCH',\n    'POST',\n    'PUT',\n];\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport '../_version.js';\n/**\n * @param {function()|Object} handler Either a function, or an object with a\n * 'handle' method.\n * @return {Object} An object with a handle method.\n *\n * @private\n */\nexport const normalizeHandler = (handler) => {\n    if (handler && typeof handler === 'object') {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.hasMethod(handler, 'handle', {\n                moduleName: 'workbox-routing',\n                className: 'Route',\n                funcName: 'constructor',\n                paramName: 'handler',\n            });\n        }\n        return handler;\n    }\n    else {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(handler, 'function', {\n                moduleName: 'workbox-routing',\n                className: 'Route',\n                funcName: 'constructor',\n                paramName: 'handler',\n            });\n        }\n        return { handle: handler };\n    }\n};\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { defaultMethod, validMethods } from './utils/constants.js';\nimport { normalizeHandler } from './utils/normalizeHandler.js';\nimport './_version.js';\n/**\n * A `Route` consists of a pair of callback functions, \"match\" and \"handler\".\n * The \"match\" callback determine if a route should be used to \"handle\" a\n * request by returning a non-falsy value if it can. The \"handler\" callback\n * is called when there is a match and should return a Promise that resolves\n * to a `Response`.\n *\n * @memberof module:workbox-routing\n */\nclass Route {\n    /**\n     * Constructor for Route class.\n     *\n     * @param {module:workbox-routing~matchCallback} match\n     * A callback function that determines whether the route matches a given\n     * `fetch` event by returning a non-falsy value.\n     * @param {module:workbox-routing~handlerCallback} handler A callback\n     * function that returns a Promise resolving to a Response.\n     * @param {string} [method='GET'] The HTTP method to match the Route\n     * against.\n     */\n    constructor(match, handler, method = defaultMethod) {\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isType(match, 'function', {\n                moduleName: 'workbox-routing',\n                className: 'Route',\n                funcName: 'constructor',\n                paramName: 'match',\n            });\n            if (method) {\n                assert.isOneOf(method, validMethods, { paramName: 'method' });\n            }\n        }\n        // These values are referenced directly by Router so cannot be\n        // altered by minificaton.\n        this.handler = normalizeHandler(handler);\n        this.match = match;\n        this.method = method;\n    }\n}\nexport { Route };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { Route } from './Route.js';\nimport './_version.js';\n/**\n * RegExpRoute makes it easy to create a regular expression based\n * [Route]{@link module:workbox-routing.Route}.\n *\n * For same-origin requests the RegExp only needs to match part of the URL. For\n * requests against third-party servers, you must define a RLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-strategies.dev.js

@@ -0,0 +1,923 @@
+this.workbox = this.workbox || {};
+this.workbox.strategies = (function (exports, assert_js, cacheNames_js, cacheWrapper_js, fetchWrapper_js, getFriendlyURL_js, logger_js, WorkboxError_js) {
+    'use strict';
+
+    try {
+      self['workbox:strategies:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const messages = {
+      strategyStart: (strategyName, request) => `Using ${strategyName} to respond to '${getFriendlyURL_js.getFriendlyURL(request.url)}'`,
+      printFinalResponse: response => {
+        if (response) {
+          logger_js.logger.groupCollapsed(`View the final response here.`);
+          logger_js.logger.log(response || '[No response returned]');
+          logger_js.logger.groupEnd();
+        }
+      }
+    };
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * An implementation of a [cache-first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-falling-back-to-network}
+     * request strategy.
+     *
+     * A cache first strategy is useful for assets that have been revisioned,
+     * such as URLs like `/styles/example.a8f5f1.css`, since they
+     * can be cached for long periods of time.
+     *
+     * If the network request fails, and there is no cache match, this will throw
+     * a `WorkboxError` exception.
+     *
+     * @memberof module:workbox-strategies
+     */
+
+    class CacheFirst {
+      /**
+       * @param {Object} options
+       * @param {string} options.cacheName Cache name to store and retrieve
+       * requests. Defaults to cache names provided by
+       * [workbox-core]{@link module:workbox-core.cacheNames}.
+       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+       * to use in conjunction with this caching strategy.
+       * @param {Object} options.fetchOptions Values passed along to the
+       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+       * of all fetch() requests made by this strategy.
+       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+       */
+      constructor(options = {}) {
+        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
+        this._plugins = options.plugins || [];
+        this._fetchOptions = options.fetchOptions;
+        this._matchOptions = options.matchOptions;
+      }
+      /**
+       * This method will perform a request strategy and follows an API that
+       * will work with the
+       * [Workbox Router]{@link module:workbox-routing.Router}.
+       *
+       * @param {Object} options
+       * @param {Request|string} options.request A request to run this strategy for.
+       * @param {Event} [options.event] The event that triggered the request.
+       * @return {Promise<Response>}
+       */
+
+
+      async handle({
+        event,
+        request
+      }) {
+        const logs = [];
+
+        if (typeof request === 'string') {
+          request = new Request(request);
+        }
+
+        {
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-strategies',
+            className: 'CacheFirst',
+            funcName: 'makeRequest',
+            paramName: 'request'
+          });
+        }
+
+        let response = await cacheWrapper_js.cacheWrapper.match({
+          cacheName: this._cacheName,
+          request,
+          event,
+          matchOptions: this._matchOptions,
+          plugins: this._plugins
+        });
+        let error;
+
+        if (!response) {
+          {
+            logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will respond with a network request.`);
+          }
+
+          try {
+            response = await this._getFromNetwork(request, event);
+          } catch (err) {
+            error = err;
+          }
+
+          {
+            if (response) {
+              logs.push(`Got response from network.`);
+            } else {
+              logs.push(`Unable to get a response from the network.`);
+            }
+          }
+        } else {
+          {
+            logs.push(`Found a cached response in the '${this._cacheName}' cache.`);
+          }
+        }
+
+        {
+          logger_js.logger.groupCollapsed(messages.strategyStart('CacheFirst', request));
+
+          for (const log of logs) {
+            logger_js.logger.log(log);
+          }
+
+          messages.printFinalResponse(response);
+          logger_js.logger.groupEnd();
+        }
+
+        if (!response) {
+          throw new WorkboxError_js.WorkboxError('no-response', {
+            url: request.url,
+            error
+          });
+        }
+
+        return response;
+      }
+      /**
+       * Handles the network and cache part of CacheFirst.
+       *
+       * @param {Request} request
+       * @param {Event} [event]
+       * @return {Promise<Response>}
+       *
+       * @private
+       */
+
+
+      async _getFromNetwork(request, event) {
+        const response = await fetchWrapper_js.fetchWrapper.fetch({
+          request,
+          event,
+          fetchOptions: this._fetchOptions,
+          plugins: this._plugins
+        }); // Keep the service worker while we put the request to the cache
+
+        const responseClone = response.clone();
+        const cachePutPromise = cacheWrapper_js.cacheWrapper.put({
+          cacheName: this._cacheName,
+          request,
+          response: responseClone,
+          event,
+          plugins: this._plugins
+        });
+
+        if (event) {
+          try {
+            event.waitUntil(cachePutPromise);
+          } catch (error) {
+            {
+              logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
+            }
+          }
+        }
+
+        return response;
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * An implementation of a
+     * [cache-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-only}
+     * request strategy.
+     *
+     * This class is useful if you want to take advantage of any
+     * [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
+     *
+     * If there is no cache match, this will throw a `WorkboxError` exception.
+     *
+     * @memberof module:workbox-strategies
+     */
+
+    class CacheOnly {
+      /**
+       * @param {Object} options
+       * @param {string} options.cacheName Cache name to store and retrieve
+       * requests. Defaults to cache names provided by
+       * [workbox-core]{@link module:workbox-core.cacheNames}.
+       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+       * to use in conjunction with this caching strategy.
+       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+       */
+      constructor(options = {}) {
+        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
+        this._plugins = options.plugins || [];
+        this._matchOptions = options.matchOptions;
+      }
+      /**
+       * This method will perform a request strategy and follows an API that
+       * will work with the
+       * [Workbox Router]{@link module:workbox-routing.Router}.
+       *
+       * @param {Object} options
+       * @param {Request|string} options.request A request to run this strategy for.
+       * @param {Event} [options.event] The event that triggered the request.
+       * @return {Promise<Response>}
+       */
+
+
+      async handle({
+        event,
+        request
+      }) {
+        if (typeof request === 'string') {
+          request = new Request(request);
+        }
+
+        {
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-strategies',
+            className: 'CacheOnly',
+            funcName: 'makeRequest',
+            paramName: 'request'
+          });
+        }
+
+        const response = await cacheWrapper_js.cacheWrapper.match({
+          cacheName: this._cacheName,
+          request,
+          event,
+          matchOptions: this._matchOptions,
+          plugins: this._plugins
+        });
+
+        {
+          logger_js.logger.groupCollapsed(messages.strategyStart('CacheOnly', request));
+
+          if (response) {
+            logger_js.logger.log(`Found a cached response in the '${this._cacheName}'` + ` cache.`);
+            messages.printFinalResponse(response);
+          } else {
+            logger_js.logger.log(`No response found in the '${this._cacheName}' cache.`);
+          }
+
+          logger_js.logger.groupEnd();
+        }
+
+        if (!response) {
+          throw new WorkboxError_js.WorkboxError('no-response', {
+            url: request.url
+          });
+        }
+
+        return response;
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const cacheOkAndOpaquePlugin = {
+      /**
+       * Returns a valid response (to allow caching) if the status is 200 (OK) or
+       * 0 (opaque).
+       *
+       * @param {Object} options
+       * @param {Response} options.response
+       * @return {Response|null}
+       *
+       * @private
+       */
+      cacheWillUpdate: async ({
+        response
+      }) => {
+        if (response.status === 200 || response.status === 0) {
+          return response;
+        }
+
+        return null;
+      }
+    };
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * An implementation of a
+     * [network first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-falling-back-to-cache}
+     * request strategy.
+     *
+     * By default, this strategy will cache responses with a 200 status code as
+     * well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
+     * Opaque responses are are cross-origin requests where the response doesn't
+     * support [CORS]{@link https://enable-cors.org/}.
+     *
+     * If the network request fails, and there is no cache match, this will throw
+     * a `WorkboxError` exception.
+     *
+     * @memberof module:workbox-strategies
+     */
+
+    class NetworkFirst {
+      /**
+       * @param {Object} options
+       * @param {string} options.cacheName Cache name to store and retrieve
+       * requests. Defaults to cache names provided by
+       * [workbox-core]{@link module:workbox-core.cacheNames}.
+       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+       * to use in conjunction with this caching strategy.
+       * @param {Object} options.fetchOptions Values passed along to the
+       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+       * of all fetch() requests made by this strategy.
+       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+       * @param {number} options.networkTimeoutSeconds If set, any network requests
+       * that fail to respond within the timeout will fallback to the cache.
+       *
+       * This option can be used to combat
+       * "[lie-fi]{@link https://developers.google.com/web/fundamentals/performance/poor-connectivity/#lie-fi}"
+       * scenarios.
+       */
+      constructor(options = {}) {
+        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
+
+        if (options.plugins) {
+          const isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
+          this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
+        } else {
+          // No plugins passed in, use the default plugin.
+          this._plugins = [cacheOkAndOpaquePlugin];
+        }
+
+        this._networkTimeoutSeconds = options.networkTimeoutSeconds || 0;
+
+        {
+          if (this._networkTimeoutSeconds) {
+            assert_js.assert.isType(this._networkTimeoutSeconds, 'number', {
+              moduleName: 'workbox-strategies',
+              className: 'NetworkFirst',
+              funcName: 'constructor',
+              paramName: 'networkTimeoutSeconds'
+            });
+          }
+        }
+
+        this._fetchOptions = options.fetchOptions;
+        this._matchOptions = options.matchOptions;
+      }
+      /**
+       * This method will perform a request strategy and follows an API that
+       * will work with the
+       * [Workbox Router]{@link module:workbox-routing.Router}.
+       *
+       * @param {Object} options
+       * @param {Request|string} options.request A request to run this strategy for.
+       * @param {Event} [options.event] The event that triggered the request.
+       * @return {Promise<Response>}
+       */
+
+
+      async handle({
+        event,
+        request
+      }) {
+        const logs = [];
+
+        if (typeof request === 'string') {
+          request = new Request(request);
+        }
+
+        {
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-strategies',
+            className: 'NetworkFirst',
+            funcName: 'handle',
+            paramName: 'makeRequest'
+          });
+        }
+
+        const promises = [];
+        let timeoutId;
+
+        if (this._networkTimeoutSeconds) {
+          const {
+            id,
+            promise
+          } = this._getTimeoutPromise({
+            request,
+            event,
+            logs
+          });
+
+          timeoutId = id;
+          promises.push(promise);
+        }
+
+        const networkPromise = this._getNetworkPromise({
+          timeoutId,
+          request,
+          event,
+          logs
+        });
+
+        promises.push(networkPromise); // Promise.race() will resolve as soon as the first promise resolves.
+
+        let response = await Promise.race(promises); // If Promise.race() resolved with null, it might be due to a network
+        // timeout + a cache miss. If that were to happen, we'd rather wait until
+        // the networkPromise resolves instead of returning null.
+        // Note that it's fine to await an already-resolved promise, so we don't
+        // have to check to see if it's still "in flight".
+
+        if (!response) {
+          response = await networkPromise;
+        }
+
+        {
+          logger_js.logger.groupCollapsed(messages.strategyStart('NetworkFirst', request));
+
+          for (const log of logs) {
+            logger_js.logger.log(log);
+          }
+
+          messages.printFinalResponse(response);
+          logger_js.logger.groupEnd();
+        }
+
+        if (!response) {
+          throw new WorkboxError_js.WorkboxError('no-response', {
+            url: request.url
+          });
+        }
+
+        return response;
+      }
+      /**
+       * @param {Object} options
+       * @param {Request} options.request
+       * @param {Array} options.logs A reference to the logs array
+       * @param {Event} [options.event]
+       * @return {Promise<Response>}
+       *
+       * @private
+       */
+
+
+      _getTimeoutPromise({
+        request,
+        logs,
+        event
+      }) {
+        let timeoutId;
+        const timeoutPromise = new Promise(resolve => {
+          const onNetworkTimeout = async () => {
+            {
+              logs.push(`Timing out the network response at ` + `${this._networkTimeoutSeconds} seconds.`);
+            }
+
+            resolve(await this._respondFromCache({
+              request,
+              event
+            }));
+          };
+
+          timeoutId = setTimeout(onNetworkTimeout, this._networkTimeoutSeconds * 1000);
+        });
+        return {
+          promise: timeoutPromise,
+          id: timeoutId
+        };
+      }
+      /**
+       * @param {Object} options
+       * @param {number|undefined} options.timeoutId
+       * @param {Request} options.request
+       * @param {Array} options.logs A reference to the logs Array.
+       * @param {Event} [options.event]
+       * @return {Promise<Response>}
+       *
+       * @private
+       */
+
+
+      async _getNetworkPromise({
+        timeoutId,
+        request,
+        logs,
+        event
+      }) {
+        let error;
+        let response;
+
+        try {
+          response = await fetchWrapper_js.fetchWrapper.fetch({
+            request,
+            event,
+            fetchOptions: this._fetchOptions,
+            plugins: this._plugins
+          });
+        } catch (err) {
+          error = err;
+        }
+
+        if (timeoutId) {
+          clearTimeout(timeoutId);
+        }
+
+        {
+          if (response) {
+            logs.push(`Got response from network.`);
+          } else {
+            logs.push(`Unable to get a response from the network. Will respond ` + `with a cached response.`);
+          }
+        }
+
+        if (error || !response) {
+          response = await this._respondFromCache({
+            request,
+            event
+          });
+
+          {
+            if (response) {
+              logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache.`);
+            } else {
+              logs.push(`No response found in the '${this._cacheName}' cache.`);
+            }
+          }
+        } else {
+          // Keep the service worker alive while we put the request in the cache
+          const responseClone = response.clone();
+          const cachePut = cacheWrapper_js.cacheWrapper.put({
+            cacheName: this._cacheName,
+            request,
+            response: responseClone,
+            event,
+            plugins: this._plugins
+          });
+
+          if (event) {
+            try {
+              // The event has been responded to so we can keep the SW alive to
+              // respond to the request
+              event.waitUntil(cachePut);
+            } catch (err) {
+              {
+                logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
+              }
+            }
+          }
+        }
+
+        return response;
+      }
+      /**
+       * Used if the network timeouts or fails to make the request.
+       *
+       * @param {Object} options
+       * @param {Request} request The request to match in the cache
+       * @param {Event} [options.event]
+       * @return {Promise<Object>}
+       *
+       * @private
+       */
+
+
+      _respondFromCache({
+        event,
+        request
+      }) {
+        return cacheWrapper_js.cacheWrapper.match({
+          cacheName: this._cacheName,
+          request,
+          event,
+          matchOptions: this._matchOptions,
+          plugins: this._plugins
+        });
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * An implementation of a
+     * [network-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-only}
+     * request strategy.
+     *
+     * This class is useful if you want to take advantage of any
+     * [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
+     *
+     * If the network request fails, this will throw a `WorkboxError` exception.
+     *
+     * @memberof module:workbox-strategies
+     */
+
+    class NetworkOnly {
+      /**
+       * @param {Object} options
+       * @param {string} options.cacheName Cache name to store and retrieve
+       * requests. Defaults to cache names provided by
+       * [workbox-core]{@link module:workbox-core.cacheNames}.
+       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+       * to use in conjunction with this caching strategy.
+       * @param {Object} options.fetchOptions Values passed along to the
+       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+       * of all fetch() requests made by this strategy.
+       */
+      constructor(options = {}) {
+        this._plugins = options.plugins || [];
+        this._fetchOptions = options.fetchOptions;
+      }
+      /**
+       * This method will perform a request strategy and follows an API that
+       * will work with the
+       * [Workbox Router]{@link module:workbox-routing.Router}.
+       *
+       * @param {Object} options
+       * @param {Request|string} options.request The request to run this strategy for.
+       * @param {Event} [options.event] The event that triggered the request.
+       * @return {Promise<Response>}
+       */
+
+
+      async handle({
+        event,
+        request
+      }) {
+        if (typeof request === 'string') {
+          request = new Request(request);
+        }
+
+        {
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-strategies',
+            className: 'NetworkOnly',
+            funcName: 'handle',
+            paramName: 'request'
+          });
+        }
+
+        let error;
+        let response;
+
+        try {
+          response = await fetchWrapper_js.fetchWrapper.fetch({
+            request,
+            event,
+            fetchOptions: this._fetchOptions,
+            plugins: this._plugins
+          });
+        } catch (err) {
+          error = err;
+        }
+
+        {
+          logger_js.logger.groupCollapsed(messages.strategyStart('NetworkOnly', request));
+
+          if (response) {
+            logger_js.logger.log(`Got response from network.`);
+          } else {
+            logger_js.logger.log(`Unable to get a response from the network.`);
+          }
+
+          messages.printFinalResponse(response);
+          logger_js.logger.groupEnd();
+        }
+
+        if (!response) {
+          throw new WorkboxError_js.WorkboxError('no-response', {
+            url: request.url,
+            error
+          });
+        }
+
+        return response;
+      }
+
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * An implementation of a
+     * [stale-while-revalidate]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#stale-while-revalidate}
+     * request strategy.
+     *
+     * Resources are requested from both the cache and the network in parallel.
+     * The strategy will respond with the cached version if available, otherwise
+     * wait for the network response. The cache is updated with the network response
+     * with each successful request.
+     *
+     * By default, this strategy will cache responses with a 200 status code as
+     * well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
+     * Opaque responses are cross-origin requests where the response doesn't
+     * support [CORS]{@link https://enable-cors.org/}.
+     *
+     * If the network request fails, and there is no cache match, this will throw
+     * a `WorkboxError` exception.
+     *
+     * @memberof module:workbox-strategies
+     */
+
+    class StaleWhileRevalidate {
+      /**
+       * @param {Object} options
+       * @param {string} options.cacheName Cache name to store and retrieve
+       * requests. Defaults to cache names provided by
+       * [workbox-core]{@link module:workbox-core.cacheNames}.
+       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+       * to use in conjunction with this caching strategy.
+       * @param {Object} options.fetchOptions Values passed along to the
+       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+       * of all fetch() requests made by this strategy.
+       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+       */
+      constructor(options = {}) {
+        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
+        this._plugins = options.plugins || [];
+
+        if (options.plugins) {
+          const isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
+          this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
+        } else {
+          // No plugins passed in, use the default plugin.
+          this._plugins = [cacheOkAndOpaquePlugin];
+        }
+
+        this._fetchOptions = options.fetchOptions;
+        this._matchOptions = options.matchOptions;
+      }
+      /**
+       * This method will perform a request strategy and follows an API that
+       * will work with the
+       * [Workbox Router]{@link module:workbox-routing.Router}.
+       *
+       * @param {Object} options
+       * @param {Request|string} options.request A request to run this strategy for.
+       * @param {Event} [options.event] The event that triggered the request.
+       * @return {Promise<Response>}
+       */
+
+
+      async handle({
+        event,
+        request
+      }) {
+        const logs = [];
+
+        if (typeof request === 'string') {
+          request = new Request(request);
+        }
+
+        {
+          assert_js.assert.isInstance(request, Request, {
+            moduleName: 'workbox-strategies',
+            className: 'StaleWhileRevalidate',
+            funcName: 'handle',
+            paramName: 'request'
+          });
+        }
+
+        const fetchAndCachePromise = this._getFromNetwork({
+          request,
+          event
+        });
+
+        let response = await cacheWrapper_js.cacheWrapper.match({
+          cacheName: this._cacheName,
+          request,
+          event,
+          matchOptions: this._matchOptions,
+          plugins: this._plugins
+        });
+        let error;
+
+        if (response) {
+          {
+            logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache. Will update with the network response in the background.`);
+          }
+
+          if (event) {
+            try {
+              event.waitUntil(fetchAndCachePromise);
+            } catch (error) {
+              {
+                logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
+              }
+            }
+          }
+        } else {
+          {
+            logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will wait for the network response.`);
+          }
+
+          try {
+            response = await fetchAndCachePromise;
+          } catch (err) {
+            error = err;
+          }
+        }
+
+        {
+          logger_js.logger.groupCollapsed(messages.strategyStart('StaleWhileRevalidate', request));
+
+          for (const log of logs) {
+            logger_js.logger.log(log);
+          }
+
+          messages.printFinalResponse(response);
+          logger_js.logger.groupEnd();
+        }
+
+        if (!response) {
+          throw new WorkboxError_js.WorkboxError('no-response', {
+            url: request.url,
+            error
+          });
+        }
+
+        return response;
+      }
+      /**
+       * @param {Object} options
+       * @param {Request} options.request
+       * @param {Event} [options.event]
+       * @return {Promise<Response>}
+       *
+       * @private
+       */
+
+
+      async _getFromNetwork({
+        request,
+        event
+      }) {
+        const response = await fetchWrapper_js.fetchWrapper.fetch({
+          request,
+          event,
+          fetchOptions: this._fetchOptions,
+          plugins: this._plugins
+        });
+        const cachePutPromise = cacheWrapper_js.cacheWrapper.put({
+          cacheName: this._cacheName,
+          request,
+          response: response.clone(),
+          event,
+          plugins: this._plugins
+        });
+
+        if (event) {
+          try {
+            event.waitUntil(cachePutPromise);
+          } catch (error) {
+            {
+              logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
+            }
+          }
+        }
+
+        return response;
+      }
+
+    }
+
+    exports.CacheFirst = CacheFirst;
+    exports.CacheOnly = CacheOnly;
+    exports.NetworkFirst = NetworkFirst;
+    exports.NetworkOnly = NetworkOnly;
+    exports.StaleWhileRevalidate = StaleWhileRevalidate;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
+//# sourceMappingURL=workbox-strategies.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-strategies.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-strategies.dev.js","sources":["../_version.js","../utils/messages.js","../CacheFirst.js","../CacheOnly.js","../plugins/cacheOkAndOpaquePlugin.js","../NetworkFirst.js","../NetworkOnly.js","../StaleWhileRevalidate.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:strategies:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';\nimport '../_version.js';\nexport const messages = {\n    strategyStart: (strategyName, request) => `Using ${strategyName} to respond to '${getFriendlyURL(request.url)}'`,\n    printFinalResponse: (response) => {\n        if (response) {\n            logger.groupCollapsed(`View the final response here.`);\n            logger.log(response || '[No response returned]');\n            logger.groupEnd();\n        }\n    },\n};\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { cacheNames } from 'workbox-core/_private/cacheNames.js';\nimport { cacheWrapper } from 'workbox-core/_private/cacheWrapper.js';\nimport { fetchWrapper } from 'workbox-core/_private/fetchWrapper.js';\nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { messages } from './utils/messages.js';\nimport './_version.js';\n/**\n * An implementation of a [cache-first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-falling-back-to-network}\n * request strategy.\n *\n * A cache first strategy is useful for assets that have been revisioned,\n * such as URLs like `/styles/example.a8f5f1.css`, since they\n * can be cached for long periods of time.\n *\n * If the network request fails, and there is no cache match, this will throw\n * a `WorkboxError` exception.\n *\n * @memberof module:workbox-strategies\n */\nclass CacheFirst {\n    /**\n     * @param {Object} options\n     * @param {string} options.cacheName Cache name to store and retrieve\n     * requests. Defaults to cache names provided by\n     * [workbox-core]{@link module:workbox-core.cacheNames}.\n     * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}\n     * to use in conjunction with this caching strategy.\n     * @param {Object} options.fetchOptions Values passed along to the\n     * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)\n     * of all fetch() requests made by this strategy.\n     * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)\n     */\n    constructor(options = {}) {\n        this._cacheName = cacheNames.getRuntimeName(options.cacheName);\n        this._plugins = options.plugins || [];\n        this._fetchOptions = options.fetchOptions;\n        this._matchOptions = options.matchOptions;\n    }\n    /**\n     * This method will perform a request strategy and follows an API that\n     * will work with the\n     * [Workbox Router]{@link module:workbox-routing.Router}.\n     *\n     * @param {Object} options\n     * @param {Request|string} options.request A request to run this strategy for.\n     * @param {Event} [options.event] The event that triggered the request.\n     * @return {Promise<Response>}\n     */\n    async handle({ event, request }) {\n        const logs = [];\n        if (typeof request === 'string') {\n            request = new Request(request);\n        }\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isInstance(request, Request, {\n                moduleName: 'workbox-strategies',\n                className: 'CacheFirst',\n                funcName: 'makeRequest',\n                paramName: 'request',\n            });\n        }\n        let response = await cacheWrapper.match({\n            cacheName: this._cacheName,\n            request,\n            event,\n            matchOptions: this._matchOptions,\n            plugins: this._plugins,\n        });\n        let error;\n        if (!response) {\n            if (process.env.NODE_ENV !== 'production') {\n                logs.push(`No response found in the '${this._cacheName}' cache. ` +\n                    `Will respond with a network request.`);\n            }\n            try {\n                response = await this._getFromNetwork(request, event);\n            }\n            catch (Line truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-strategies.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.strategies=function(t,e,s,i,n){"use strict";try{self["workbox:strategies:5.1.4"]&&_()}catch(t){}const r={cacheWillUpdate:async({response:t})=>200===t.status||0===t.status?t:null};return t.CacheFirst=class{constructor(t={}){this.t=e.cacheNames.getRuntimeName(t.cacheName),this.s=t.plugins||[],this.i=t.fetchOptions,this.h=t.matchOptions}async handle({event:t,request:e}){"string"==typeof e&&(e=new Request(e));let i,r=await s.cacheWrapper.match({cacheName:this.t,request:e,event:t,matchOptions:this.h,plugins:this.s});if(!r)try{r=await this.o(e,t)}catch(t){i=t}if(!r)throw new n.WorkboxError("no-response",{url:e.url,error:i});return r}async o(t,e){const n=await i.fetchWrapper.fetch({request:t,event:e,fetchOptions:this.i,plugins:this.s}),r=n.clone(),h=s.cacheWrapper.put({cacheName:this.t,request:t,response:r,event:e,plugins:this.s});if(e)try{e.waitUntil(h)}catch(t){}return n}},t.CacheOnly=class{constructor(t={}){this.t=e.cacheNames.getRuntimeName(t.cacheName),this.s=t.plugins||[],this.h=t.matchOptions}async handle({event:t,request:e}){"string"==typeof e&&(e=new Request(e));const i=await s.cacheWrapper.match({cacheName:this.t,request:e,event:t,matchOptions:this.h,plugins:this.s});if(!i)throw new n.WorkboxError("no-response",{url:e.url});return i}},t.NetworkFirst=class{constructor(t={}){if(this.t=e.cacheNames.getRuntimeName(t.cacheName),t.plugins){const e=t.plugins.some(t=>!!t.cacheWillUpdate);this.s=e?t.plugins:[r,...t.plugins]}else this.s=[r];this.u=t.networkTimeoutSeconds||0,this.i=t.fetchOptions,this.h=t.matchOptions}async handle({event:t,request:e}){const s=[];"string"==typeof e&&(e=new Request(e));const i=[];let r;if(this.u){const{id:n,promise:h}=this.l({request:e,event:t,logs:s});r=n,i.push(h)}const h=this.p({timeoutId:r,request:e,event:t,logs:s});i.push(h);let o=await Promise.race(i);if(o||(o=await h),!o)throw new n.WorkboxError("no-response",{url:e.url});return o}l({request:t,logs:e,event:s}){let i;return{promise:new Promise(e=>{i=setTimeout(async()=>{e(await this.q({request:t,event:s}))},1e3*this.u)}),id:i}}async p({timeoutId:t,request:e,logs:n,event:r}){let h,o;try{o=await i.fetchWrapper.fetch({request:e,event:r,fetchOptions:this.i,plugins:this.s})}catch(t){h=t}if(t&&clearTimeout(t),h||!o)o=await this.q({request:e,event:r});else{const t=o.clone(),i=s.cacheWrapper.put({cacheName:this.t,request:e,response:t,event:r,plugins:this.s});if(r)try{r.waitUntil(i)}catch(t){}}return o}q({event:t,request:e}){return s.cacheWrapper.match({cacheName:this.t,request:e,event:t,matchOptions:this.h,plugins:this.s})}},t.NetworkOnly=class{constructor(t={}){this.s=t.plugins||[],this.i=t.fetchOptions}async handle({event:t,request:e}){let s,r;"string"==typeof e&&(e=new Request(e));try{r=await i.fetchWrapper.fetch({request:e,event:t,fetchOptions:this.i,plugins:this.s})}catch(t){s=t}if(!r)throw new n.WorkboxError("no-response",{url:e.url,error:s});return r}},t.StaleWhileRevalidate=class{constructor(t={}){if(this.t=e.cacheNames.getRuntimeName(t.cacheName),this.s=t.plugins||[],t.plugins){const e=t.plugins.some(t=>!!t.cacheWillUpdate);this.s=e?t.plugins:[r,...t.plugins]}else this.s=[r];this.i=t.fetchOptions,this.h=t.matchOptions}async handle({event:t,request:e}){"string"==typeof e&&(e=new Request(e));const i=this.o({request:e,event:t});let r,h=await s.cacheWrapper.match({cacheName:this.t,request:e,event:t,matchOptions:this.h,plugins:this.s});if(h){if(t)try{t.waitUntil(i)}catch(r){}}else try{h=await i}catch(t){r=t}if(!h)throw new n.WorkboxError("no-response",{url:e.url,error:r});return h}async o({request:t,event:e}){const n=await i.fetchWrapper.fetch({request:t,event:e,fetchOptions:this.i,plugins:this.s}),r=s.cacheWrapper.put({cacheName:this.t,request:t,response:n.clone(),event:e,plugins:this.s});if(e)try{e.waitUntil(r)}catch(t){}return n}},t}({},workbox.core._private,workbox.core._private,workbox.core._private,workbox.core._private);
+//# sourceMappingURL=workbox-strategies.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-strategies.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-strategies.prod.js","sources":["../_version.js","../plugins/cacheOkAndOpaquePlugin.js","../CacheFirst.js","../CacheOnly.js","../NetworkFirst.js","../NetworkOnly.js","../StaleWhileRevalidate.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:strategies:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\nexport const cacheOkAndOpaquePlugin = {\n    /**\n     * Returns a valid response (to allow caching) if the status is 200 (OK) or\n     * 0 (opaque).\n     *\n     * @param {Object} options\n     * @param {Response} options.response\n     * @return {Response|null}\n     *\n     * @private\n     */\n    cacheWillUpdate: async ({ response }) => {\n        if (response.status === 200 || response.status === 0) {\n            return response;\n        }\n        return null;\n    },\n};\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { cacheNames } from 'workbox-core/_private/cacheNames.js';\nimport { cacheWrapper } from 'workbox-core/_private/cacheWrapper.js';\nimport { fetchWrapper } from 'workbox-core/_private/fetchWrapper.js';\nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';\nimport { messages } from './utils/messages.js';\nimport './_version.js';\n/**\n * An implementation of a [cache-first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-falling-back-to-network}\n * request strategy.\n *\n * A cache first strategy is useful for assets that have been revisioned,\n * such as URLs like `/styles/example.a8f5f1.css`, since they\n * can be cached for long periods of time.\n *\n * If the network request fails, and there is no cache match, this will throw\n * a `WorkboxError` exception.\n *\n * @memberof module:workbox-strategies\n */\nclass CacheFirst {\n    /**\n     * @param {Object} options\n     * @param {string} options.cacheName Cache name to store and retrieve\n     * requests. Defaults to cache names provided by\n     * [workbox-core]{@link module:workbox-core.cacheNames}.\n     * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}\n     * to use in conjunction with this caching strategy.\n     * @param {Object} options.fetchOptions Values passed along to the\n     * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)\n     * of all fetch() requests made by this strategy.\n     * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)\n     */\n    constructor(options = {}) {\n        this._cacheName = cacheNames.getRuntimeName(options.cacheName);\n        this._plugins = options.plugins || [];\n        this._fetchOptions = options.fetchOptions;\n        this._matchOptions = options.matchOptions;\n    }\n    /**\n     * This method will perform a request strategy and follows an API that\n     * will work with the\n     * [Workbox Router]{@link module:workbox-routing.Router}.\n     *\n     * @param {Object} options\n     * @param {Request|string} options.request A request to run this strategy for.\n     * @param {Event} [options.event] The event that triggered the request.\n     * @return {Promise<Response>}\n     */\n    async handle({ event, request }) {\n        const logs = [];\n        if (typeof request === 'string') {\n            request = new Request(request);\n        }\n        if (process.env.NODE_ENV !== 'production') {\n            assert.isInstance(request, Request, {\n                moduleName: 'workbox-strategies',\n                className: 'CacheFirst',\n                funcName: 'makeRequest',\n                paramName: 'request',\n            });\n        }\n        let response = await cacheWrapper.match({\n            cacheName: this._cacheName,\n            request,\n            event,\n            matchOptions: this._matchOptions,\n            plugins: this._plugins,\n        });\n        let error;\n        if (!response) {\n            if (process.env.NODE_ENV !== 'production') {\n                logs.push(`No response found in the '${this._cacheName}' cache. ` +\n                    `Will respond with a network request.`);\n            }\n            try {\n                response = await this._getFromNetwork(request, event);\n            }\n            catch (err) {\n                error = err;\n            }\n            ifLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-streams.dev.js

@@ -0,0 +1,318 @@
+this.workbox = this.workbox || {};
+this.workbox.streams = (function (exports, logger_js, assert_js, Deferred_js, canConstructReadableStream_js) {
+    'use strict';
+
+    try {
+      self['workbox:streams:5.1.4'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Takes either a Response, a ReadableStream, or a
+     * [BodyInit](https://fetch.spec.whatwg.org/#bodyinit) and returns the
+     * ReadableStreamReader object associated with it.
+     *
+     * @param {module:workbox-streams.StreamSource} source
+     * @return {ReadableStreamReader}
+     * @private
+     */
+
+    function _getReaderFromSource(source) {
+      if (source instanceof Response) {
+        return source.body.getReader();
+      }
+
+      if (source instanceof ReadableStream) {
+        return source.getReader();
+      }
+
+      return new Response(source).body.getReader();
+    }
+    /**
+     * Takes multiple source Promises, each of which could resolve to a Response, a
+     * ReadableStream, or a [BodyInit](https://fetch.spec.whatwg.org/#bodyinit).
+     *
+     * Returns an object exposing a ReadableStream with each individual stream's
+     * data returned in sequence, along with a Promise which signals when the
+     * stream is finished (useful for passing to a FetchEvent's waitUntil()).
+     *
+     * @param {Array<Promise<module:workbox-streams.StreamSource>>} sourcePromises
+     * @return {Object<{done: Promise, stream: ReadableStream}>}
+     *
+     * @memberof module:workbox-streams
+     */
+
+
+    function concatenate(sourcePromises) {
+      {
+        assert_js.assert.isArray(sourcePromises, {
+          moduleName: 'workbox-streams',
+          funcName: 'concatenate',
+          paramName: 'sourcePromises'
+        });
+      }
+
+      const readerPromises = sourcePromises.map(sourcePromise => {
+        return Promise.resolve(sourcePromise).then(source => {
+          return _getReaderFromSource(source);
+        });
+      });
+      const streamDeferred = new Deferred_js.Deferred();
+      let i = 0;
+      const logMessages = [];
+      const stream = new ReadableStream({
+        pull(controller) {
+          return readerPromises[i].then(reader => reader.read()).then(result => {
+            if (result.done) {
+              {
+                logMessages.push(['Reached the end of source:', sourcePromises[i]]);
+              }
+
+              i++;
+
+              if (i >= readerPromises.length) {
+                // Log all the messages in the group at once in a single group.
+                {
+                  logger_js.logger.groupCollapsed(`Concatenating ${readerPromises.length} sources.`);
+
+                  for (const message of logMessages) {
+                    if (Array.isArray(message)) {
+                      logger_js.logger.log(...message);
+                    } else {
+                      logger_js.logger.log(message);
+                    }
+                  }
+
+                  logger_js.logger.log('Finished reading all sources.');
+                  logger_js.logger.groupEnd();
+                }
+
+                controller.close();
+                streamDeferred.resolve();
+                return;
+              } // The `pull` method is defined because we're inside it.
+
+
+              return this.pull(controller);
+            } else {
+              controller.enqueue(result.value);
+            }
+          }).catch(error => {
+            {
+              logger_js.logger.error('An error occurred:', error);
+            }
+
+            streamDeferred.reject(error);
+            throw error;
+          });
+        },
+
+        cancel() {
+          {
+            logger_js.logger.warn('The ReadableStream was cancelled.');
+          }
+
+          streamDeferred.resolve();
+        }
+
+      });
+      return {
+        done: streamDeferred.promise,
+        stream
+      };
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * This is a utility method that determines whether the current browser supports
+     * the features required to create streamed responses. Currently, it checks if
+     * [`ReadableStream`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream/ReadableStream)
+     * is available.
+     *
+     * @private
+     * @param {HeadersInit} [headersInit] If there's no `Content-Type` specified,
+     * `'text/html'` will be used by default.
+     * @return {boolean} `true`, if the current browser meets the requirements for
+     * streaming responses, and `false` otherwise.
+     *
+     * @memberof module:workbox-streams
+     */
+
+    function createHeaders(headersInit = {}) {
+      // See https://github.com/GoogleChrome/workbox/issues/1461
+      const headers = new Headers(headersInit);
+
+      if (!headers.has('content-type')) {
+        headers.set('content-type', 'text/html');
+      }
+
+      return headers;
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Takes multiple source Promises, each of which could resolve to a Response, a
+     * ReadableStream, or a [BodyInit](https://fetch.spec.whatwg.org/#bodyinit),
+     * along with a
+     * [HeadersInit](https://fetch.spec.whatwg.org/#typedefdef-headersinit).
+     *
+     * Returns an object exposing a Response whose body consists of each individual
+     * stream's data returned in sequence, along with a Promise which signals when
+     * the stream is finished (useful for passing to a FetchEvent's waitUntil()).
+     *
+     * @param {Array<Promise<module:workbox-streams.StreamSource>>} sourcePromises
+     * @param {HeadersInit} [headersInit] If there's no `Content-Type` specified,
+     * `'text/html'` will be used by default.
+     * @return {Object<{done: Promise, response: Response}>}
+     *
+     * @memberof module:workbox-streams
+     */
+
+    function concatenateToResponse(sourcePromises, headersInit) {
+      const {
+        done,
+        stream
+      } = concatenate(sourcePromises);
+      const headers = createHeaders(headersInit);
+      const response = new Response(stream, {
+        headers
+      });
+      return {
+        done,
+        response
+      };
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * This is a utility method that determines whether the current browser supports
+     * the features required to create streamed responses. Currently, it checks if
+     * [`ReadableStream`](https://developer.mozilla.org/en-US/docs/Web/API/ReadableStream/ReadableStream)
+     * can be created.
+     *
+     * @return {boolean} `true`, if the current browser meets the requirements for
+     * streaming responses, and `false` otherwise.
+     *
+     * @memberof module:workbox-streams
+     */
+
+    function isSupported() {
+      return canConstructReadableStream_js.canConstructReadableStream();
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * A shortcut to create a strategy that could be dropped-in to Workbox's router.
+     *
+     * On browsers that do not support constructing new `ReadableStream`s, this
+     * strategy will automatically wait for all the `sourceFunctions` to complete,
+     * and create a final response that concatenates their values together.
+     *
+     * @param {Array<function({event, request, url, params})>} sourceFunctions
+     * An array of functions similar to {@link module:workbox-routing~handlerCallback}
+     * but that instead return a {@link module:workbox-streams.StreamSource} (or a
+     * Promise which resolves to one).
+     * @param {HeadersInit} [headersInit] If there's no `Content-Type` specified,
+     * `'text/html'` will be used by default.
+     * @return {module:workbox-routing~handlerCallback}
+     * @memberof module:workbox-streams
+     */
+
+    function strategy(sourceFunctions, headersInit) {
+      return async ({
+        event,
+        request,
+        url,
+        params
+      }) => {
+        const sourcePromises = sourceFunctions.map(fn => {
+          // Ensure the return value of the function is always a promise.
+          return Promise.resolve(fn({
+            event,
+            request,
+            url,
+            params
+          }));
+        });
+
+        if (isSupported()) {
+          const {
+            done,
+            response
+          } = concatenateToResponse(sourcePromises, headersInit);
+
+          if (event) {
+            event.waitUntil(done);
+          }
+
+          return response;
+        }
+
+        {
+          logger_js.logger.log(`The current browser doesn't support creating response ` + `streams. Falling back to non-streaming response instead.`);
+        } // Fallback to waiting for everything to finish, and concatenating the
+        // responses.
+
+
+        const blobPartsPromises = sourcePromises.map(async sourcePromise => {
+          const source = await sourcePromise;
+
+          if (source instanceof Response) {
+            return source.blob();
+          } else {
+            // Technically, a `StreamSource` object can include any valid
+            // `BodyInit` type, including `FormData` and `URLSearchParams`, which
+            // cannot be passed to the Blob constructor directly, so we have to
+            // convert them to actual Blobs first.
+            return new Response(source).blob();
+          }
+        });
+        const blobParts = await Promise.all(blobPartsPromises);
+        const headers = createHeaders(headersInit); // Constructing a new Response from a Blob source is well-supported.
+        // So is constructing a new Blob from multiple source Blobs or strings.
+
+        return new Response(new Blob(blobParts), {
+          headers
+        });
+      };
+    }
+
+    exports.concatenate = concatenate;
+    exports.concatenateToResponse = concatenateToResponse;
+    exports.isSupported = isSupported;
+    exports.strategy = strategy;
+
+    return exports;
+
+}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));
+//# sourceMappingURL=workbox-streams.dev.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-streams.dev.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-streams.dev.js","sources":["../_version.js","../concatenate.js","../utils/createHeaders.js","../concatenateToResponse.js","../isSupported.js","../strategy.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:streams:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { Deferred } from 'workbox-core/_private/Deferred.js';\nimport './_version.js';\n/**\n * Takes either a Response, a ReadableStream, or a\n * [BodyInit](https://fetch.spec.whatwg.org/#bodyinit) and returns the\n * ReadableStreamReader object associated with it.\n *\n * @param {module:workbox-streams.StreamSource} source\n * @return {ReadableStreamReader}\n * @private\n */\nfunction _getReaderFromSource(source) {\n    if (source instanceof Response) {\n        return source.body.getReader();\n    }\n    if (source instanceof ReadableStream) {\n        return source.getReader();\n    }\n    return new Response(source).body.getReader();\n}\n/**\n * Takes multiple source Promises, each of which could resolve to a Response, a\n * ReadableStream, or a [BodyInit](https://fetch.spec.whatwg.org/#bodyinit).\n *\n * Returns an object exposing a ReadableStream with each individual stream's\n * data returned in sequence, along with a Promise which signals when the\n * stream is finished (useful for passing to a FetchEvent's waitUntil()).\n *\n * @param {Array<Promise<module:workbox-streams.StreamSource>>} sourcePromises\n * @return {Object<{done: Promise, stream: ReadableStream}>}\n *\n * @memberof module:workbox-streams\n */\nfunction concatenate(sourcePromises) {\n    if (process.env.NODE_ENV !== 'production') {\n        assert.isArray(sourcePromises, {\n            moduleName: 'workbox-streams',\n            funcName: 'concatenate',\n            paramName: 'sourcePromises',\n        });\n    }\n    const readerPromises = sourcePromises.map((sourcePromise) => {\n        return Promise.resolve(sourcePromise).then((source) => {\n            return _getReaderFromSource(source);\n        });\n    });\n    const streamDeferred = new Deferred();\n    let i = 0;\n    const logMessages = [];\n    const stream = new ReadableStream({\n        pull(controller) {\n            return readerPromises[i]\n                .then((reader) => reader.read())\n                .then((result) => {\n                if (result.done) {\n                    if (process.env.NODE_ENV !== 'production') {\n                        logMessages.push(['Reached the end of source:',\n                            sourcePromises[i]]);\n                    }\n                    i++;\n                    if (i >= readerPromises.length) {\n                        // Log all the messages in the group at once in a single group.\n                        if (process.env.NODE_ENV !== 'production') {\n                            logger.groupCollapsed(`Concatenating ${readerPromises.length} sources.`);\n                            for (const message of logMessages) {\n                                if (Array.isArray(message)) {\n                                    logger.log(...message);\n                                }\n                                else {\n                                    logger.log(message);\n                                }\n                            }\n                            logger.log('Finished reading all sources.');\n                            logger.groupEnd();\n                        }\n                        controller.close();\n                        streamDeferred.resolve();\n                        return;\n                    }\n                    // The `pull` method is defined because we're inside it.\n                    return this.pull(controller);\n                }\n                else {\n                    controller.enqueue(result.value);\n                }\n            }).catch((error) => {\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.error('An error occurred:', error);\n                }\n                streamDeferred.reject(error);\n                throw error;\n            });\n        },\n        cancel() {\n            if (process.env.NODE_ENV !== 'production') {\n                logger.warn('The ReadableStream was cancelled.');\n            }\n            streamDeferred.resolve();\n        },\n    });\n    return { done: streamDeferred.promise, stream };\n}\nexport { concatenate };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\n/**\n * This is a utility method that deterLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-streams.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.streams=function(e,n,t){"use strict";try{self["workbox:streams:5.1.4"]&&_()}catch(e){}function s(e){const t=e.map(e=>Promise.resolve(e).then(e=>function(e){return e instanceof Response?e.body.getReader():e instanceof ReadableStream?e.getReader():new Response(e).body.getReader()}(e))),s=new n.Deferred;let r=0;const o=new ReadableStream({pull(e){return t[r].then(e=>e.read()).then(n=>{if(n.done)return r++,r>=t.length?(e.close(),void s.resolve()):this.pull(e);e.enqueue(n.value)}).catch(e=>{throw s.reject(e),e})},cancel(){s.resolve()}});return{done:s.promise,stream:o}}function r(e={}){const n=new Headers(e);return n.has("content-type")||n.set("content-type","text/html"),n}function o(e,n){const{done:t,stream:o}=s(e),c=r(n);return{done:t,response:new Response(o,{headers:c})}}function c(){return t.canConstructReadableStream()}return e.concatenate=s,e.concatenateToResponse=o,e.isSupported=c,e.strategy=function(e,n){return async({event:t,request:s,url:a,params:u})=>{const i=e.map(e=>Promise.resolve(e({event:t,request:s,url:a,params:u})));if(c()){const{done:e,response:s}=o(i,n);return t&&t.waitUntil(e),s}const f=i.map(async e=>{const n=await e;return n instanceof Response?n.blob():new Response(n).blob()}),p=await Promise.all(f),w=r(n);return new Response(new Blob(p),{headers:w})}},e}({},workbox.core._private,workbox.core._private);
+//# sourceMappingURL=workbox-streams.prod.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-streams.prod.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-streams.prod.js","sources":["../_version.js","../concatenate.js","../utils/createHeaders.js","../concatenateToResponse.js","../isSupported.js","../strategy.js"],"sourcesContent":["\"use strict\";\n// @ts-ignore\ntry {\n    self['workbox:streams:5.1.4'] && _();\n}\ncatch (e) { }\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport { logger } from 'workbox-core/_private/logger.js';\nimport { assert } from 'workbox-core/_private/assert.js';\nimport { Deferred } from 'workbox-core/_private/Deferred.js';\nimport './_version.js';\n/**\n * Takes either a Response, a ReadableStream, or a\n * [BodyInit](https://fetch.spec.whatwg.org/#bodyinit) and returns the\n * ReadableStreamReader object associated with it.\n *\n * @param {module:workbox-streams.StreamSource} source\n * @return {ReadableStreamReader}\n * @private\n */\nfunction _getReaderFromSource(source) {\n    if (source instanceof Response) {\n        return source.body.getReader();\n    }\n    if (source instanceof ReadableStream) {\n        return source.getReader();\n    }\n    return new Response(source).body.getReader();\n}\n/**\n * Takes multiple source Promises, each of which could resolve to a Response, a\n * ReadableStream, or a [BodyInit](https://fetch.spec.whatwg.org/#bodyinit).\n *\n * Returns an object exposing a ReadableStream with each individual stream's\n * data returned in sequence, along with a Promise which signals when the\n * stream is finished (useful for passing to a FetchEvent's waitUntil()).\n *\n * @param {Array<Promise<module:workbox-streams.StreamSource>>} sourcePromises\n * @return {Object<{done: Promise, stream: ReadableStream}>}\n *\n * @memberof module:workbox-streams\n */\nfunction concatenate(sourcePromises) {\n    if (process.env.NODE_ENV !== 'production') {\n        assert.isArray(sourcePromises, {\n            moduleName: 'workbox-streams',\n            funcName: 'concatenate',\n            paramName: 'sourcePromises',\n        });\n    }\n    const readerPromises = sourcePromises.map((sourcePromise) => {\n        return Promise.resolve(sourcePromise).then((source) => {\n            return _getReaderFromSource(source);\n        });\n    });\n    const streamDeferred = new Deferred();\n    let i = 0;\n    const logMessages = [];\n    const stream = new ReadableStream({\n        pull(controller) {\n            return readerPromises[i]\n                .then((reader) => reader.read())\n                .then((result) => {\n                if (result.done) {\n                    if (process.env.NODE_ENV !== 'production') {\n                        logMessages.push(['Reached the end of source:',\n                            sourcePromises[i]]);\n                    }\n                    i++;\n                    if (i >= readerPromises.length) {\n                        // Log all the messages in the group at once in a single group.\n                        if (process.env.NODE_ENV !== 'production') {\n                            logger.groupCollapsed(`Concatenating ${readerPromises.length} sources.`);\n                            for (const message of logMessages) {\n                                if (Array.isArray(message)) {\n                                    logger.log(...message);\n                                }\n                                else {\n                                    logger.log(message);\n                                }\n                            }\n                            logger.log('Finished reading all sources.');\n                            logger.groupEnd();\n                        }\n                        controller.close();\n                        streamDeferred.resolve();\n                        return;\n                    }\n                    // The `pull` method is defined because we're inside it.\n                    return this.pull(controller);\n                }\n                else {\n                    controller.enqueue(result.value);\n                }\n            }).catch((error) => {\n                if (process.env.NODE_ENV !== 'production') {\n                    logger.error('An error occurred:', error);\n                }\n                streamDeferred.reject(error);\n                throw error;\n            });\n        },\n        cancel() {\n            if (process.env.NODE_ENV !== 'production') {\n                logger.warn('The ReadableStream was cancelled.');\n            }\n            streamDeferred.resolve();\n        },\n    });\n    return { done: streamDeferred.promise, stream };\n}\nexport { concatenate };\n","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\nimport '../_version.js';\n/**\n * This is a utility method that deteLine truncated

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-sw.js

@@ -0,0 +1,2 @@
+!function(){"use strict";try{self["workbox:sw:5.1.4"]&&_()}catch(t){}const t={backgroundSync:"background-sync",broadcastUpdate:"broadcast-update",cacheableResponse:"cacheable-response",core:"core",expiration:"expiration",googleAnalytics:"offline-ga",navigationPreload:"navigation-preload",precaching:"precaching",rangeRequests:"range-requests",routing:"routing",strategies:"strategies",streams:"streams"};self.workbox=new class{constructor(){return this.v={},this.t={debug:"localhost"===self.location.hostname,modulePathPrefix:null,modulePathCb:null},this.s=this.t.debug?"dev":"prod",this.o=!1,new Proxy(this,{get(e,s){if(e[s])return e[s];const o=t[s];return o&&e.loadModule("workbox-"+o),e[s]}})}setConfig(t={}){if(this.o)throw new Error("Config must be set before accessing workbox.* modules");Object.assign(this.t,t),this.s=this.t.debug?"dev":"prod"}loadModule(t){const e=this.i(t);try{importScripts(e),this.o=!0}catch(s){throw console.error(`Unable to import module '${t}' from '${e}'.`),s}}i(t){if(this.t.modulePathCb)return this.t.modulePathCb(t,this.t.debug);let e=["https://storage.googleapis.com/workbox-cdn/releases/5.1.4"];const s=`${t}.${this.s}.js`,o=this.t.modulePathPrefix;return o&&(e=o.split("/"),""===e[e.length-1]&&e.splice(e.length-1,1)),e.push(s),e.join("/")}}}();
+//# sourceMappingURL=workbox-sw.js.map

platform/viewer/public/third_party/workbox/workbox-v5.1.4/workbox-sw.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"workbox-sw.js","sources":["../_version.mjs","../controllers/WorkboxSW.mjs","../index.mjs"],"sourcesContent":["try{self['workbox:sw:5.1.4']&&_()}catch(e){}// eslint-disable-line","/*\n  Copyright 2018 Google LLC\n\n  Use of this source code is governed by an MIT-style\n  license that can be found in the LICENSE file or at\n  https://opensource.org/licenses/MIT.\n*/\n\nimport '../_version.mjs';\n\nconst CDN_PATH = `WORKBOX_CDN_ROOT_URL`;\n\nconst MODULE_KEY_TO_NAME_MAPPING = {\n  /**\n   * @name backgroundSync\n   * @memberof workbox\n   * @see module:workbox-background-sync\n   */\n  backgroundSync: 'background-sync',\n  /**\n   * @name broadcastUpdate\n   * @memberof workbox\n   * @see module:workbox-broadcast-update\n   */\n  broadcastUpdate: 'broadcast-update',\n  /**\n   * @name cacheableResponse\n   * @memberof workbox\n   * @see module:workbox-cacheable-response\n   */\n  cacheableResponse: 'cacheable-response',\n  /**\n   * @name core\n   * @memberof workbox\n   * @see module:workbox-core\n   */\n  core: 'core',\n  /**\n   * @name expiration\n   * @memberof workbox\n   * @see module:workbox-expiration\n   */\n  expiration: 'expiration',\n  /**\n   * @name googleAnalytics\n   * @memberof workbox\n   * @see module:workbox-google-analytics\n   */\n  googleAnalytics: 'offline-ga',\n  /**\n   * @name navigationPreload\n   * @memberof workbox\n   * @see module:workbox-navigation-preload\n   */\n  navigationPreload: 'navigation-preload',\n  /**\n   * @name precaching\n   * @memberof workbox\n   * @see module:workbox-precaching\n   */\n  precaching: 'precaching',\n  /**\n   * @name rangeRequests\n   * @memberof workbox\n   * @see module:workbox-range-requests\n   */\n  rangeRequests: 'range-requests',\n  /**\n   * @name routing\n   * @memberof workbox\n   * @see module:workbox-routing\n   */\n  routing: 'routing',\n  /**\n   * @name strategies\n   * @memberof workbox\n   * @see module:workbox-strategies\n   */\n  strategies: 'strategies',\n  /**\n   * @name streams\n   * @memberof workbox\n   * @see module:workbox-streams\n   */\n  streams: 'streams',\n};\n\n/**\n * This class can be used to make it easy to use the various parts of\n * Workbox.\n *\n * @private\n */\nexport class WorkboxSW {\n  /**\n   * Creates a proxy that automatically loads workbox namespaces on demand.\n   *\n   * @private\n   */\n  constructor() {\n    this.v = {};\n    this._options = {\n      debug: self.location.hostname === 'localhost',\n      modulePathPrefix: null,\n      modulePathCb: null,\n    };\n\n    this._env = this._options.debug ? 'dev' : 'prod';\n    this._modulesLoaded = false;\n\n    return new Proxy(this, {\n      get(target, key) {\n        if (target[key]) {\n          return target[key];\n        }\n\n        const moduleName = MODULE_KEY_TO_NAME_MAPPING[key];\n        if (moduleName) {\n          target.loadModule(`workbox-${moduleName}`);\n        }\n\n        return target[key];\n      },\n    });\n  }\n\n  /**\n   * Updates the configuration options. You can specify whether to treat as a\n   * debug build and whether to use a CDN or a specific path when importing\n   * other workbox-modules\n   *\n   * @param {Object} [options]\n   * @param {boolean} [options.debug] If true, `dev` builds are using, otherwise\n   * `prod` builds are used. By default, `prod` is used unless on localhost.\n   * @param {Function} [options.modulePathPrefix] To avoid using the CDN with\n   * `workbox-sw` set the path prefix of where modules should be loaded from.\n   * For example `modulePathPrefix: '/third_party/workbox/v3.0.0/'`.\n   * @param {workbox~ModulePathCallback} [options.modulePathCb] If defined,\n   * this callback will be responsible for determining the path of each\n   * workbox module.\n   *\n   * @alias workbox.setConfig\n   */\n  setConfig(options = {}) {\n    if (!this._modulesLoaded) {\n      Object.assign(this._options, options);\n      this._env = this._options.debug ? 'dev' : 'prod';\n    } else {\n      throw new Error('Config must be set before accessing workbox.* modules');\n    }\n  }\n\n  /**\n   * Load a Workbox module by passing in the appropriate module name.\n   *\n   * This is not generally needed unless you know there are modules that are\n   * dynamically used and you want to safe guard use of the module while the\n   * user may be offline.\n   *\n   * @param {string} moduleName\n   *\n   * @alias workbox.loadModule\n   */\n  loadModule(moduleName) {\n    const modulePath = this._getImportPath(moduleName);\n    try {\n      importScripts(modulePath);\n      this._modulesLoaded = true;\n    } catch (err) {\n      // TODO Add context of this error if using the CDN vs the local file.\n\n      // We can't rely on workbox-core being loaded so using console\n      // eslint-disable-next-line\n      console.error(\n          `Unable to import module '${moduleName}' from '${modulePath}'.`);\n      throw err;\n    }\n  }\n\n  /**\n   * This method will get the path / CDN URL to be used foLine truncated