1339 lines
45 KiB
JavaScript
1339 lines
45 KiB
JavaScript
this.workbox = this.workbox || {};
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this.workbox.precaching = (function (exports, assert_js, cacheNames_js, logger_js, WorkboxError_js, waitUntil_js, copyResponse_js, getFriendlyURL_js, Strategy_js, registerRoute_js, Route_js) {
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'use strict';
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try {
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self['workbox:precaching:6.5.4'] && _();
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} catch (e) {}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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const REVISION_SEARCH_PARAM = '__WB_REVISION__';
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/**
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* Converts a manifest entry into a versioned URL suitable for precaching.
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*
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* @param {Object|string} entry
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* @return {string} A URL with versioning info.
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*
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* @private
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* @memberof workbox-precaching
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*/
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function createCacheKey(entry) {
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if (!entry) {
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throw new WorkboxError_js.WorkboxError('add-to-cache-list-unexpected-type', {
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entry
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});
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} // If a precache manifest entry is a string, it's assumed to be a versioned
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// URL, like '/app.abcd1234.js'. Return as-is.
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if (typeof entry === 'string') {
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const urlObject = new URL(entry, location.href);
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return {
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cacheKey: urlObject.href,
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url: urlObject.href
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};
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}
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const {
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revision,
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url
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} = entry;
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if (!url) {
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throw new WorkboxError_js.WorkboxError('add-to-cache-list-unexpected-type', {
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entry
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});
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} // If there's just a URL and no revision, then it's also assumed to be a
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// versioned URL.
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if (!revision) {
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const urlObject = new URL(url, location.href);
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return {
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cacheKey: urlObject.href,
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url: urlObject.href
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};
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} // Otherwise, construct a properly versioned URL using the custom Workbox
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// search parameter along with the revision info.
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const cacheKeyURL = new URL(url, location.href);
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const originalURL = new URL(url, location.href);
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cacheKeyURL.searchParams.set(REVISION_SEARCH_PARAM, revision);
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return {
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cacheKey: cacheKeyURL.href,
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url: originalURL.href
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};
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}
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/*
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Copyright 2020 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* A plugin, designed to be used with PrecacheController, to determine the
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* of assets that were updated (or not updated) during the install event.
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*
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* @private
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*/
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class PrecacheInstallReportPlugin {
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constructor() {
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this.updatedURLs = [];
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this.notUpdatedURLs = [];
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this.handlerWillStart = async ({
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request,
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state
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}) => {
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// TODO: `state` should never be undefined...
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if (state) {
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state.originalRequest = request;
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}
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};
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this.cachedResponseWillBeUsed = async ({
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event,
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state,
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cachedResponse
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}) => {
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if (event.type === 'install') {
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if (state && state.originalRequest && state.originalRequest instanceof Request) {
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// TODO: `state` should never be undefined...
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const url = state.originalRequest.url;
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if (cachedResponse) {
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this.notUpdatedURLs.push(url);
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} else {
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this.updatedURLs.push(url);
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}
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}
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}
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return cachedResponse;
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};
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}
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}
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/*
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Copyright 2020 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* A plugin, designed to be used with PrecacheController, to translate URLs into
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* the corresponding cache key, based on the current revision info.
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*
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* @private
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*/
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class PrecacheCacheKeyPlugin {
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constructor({
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precacheController
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}) {
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this.cacheKeyWillBeUsed = async ({
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request,
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params
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}) => {
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// Params is type any, can't change right now.
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/* eslint-disable */
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const cacheKey = (params === null || params === void 0 ? void 0 : params.cacheKey) || this._precacheController.getCacheKeyForURL(request.url);
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/* eslint-enable */
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return cacheKey ? new Request(cacheKey, {
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headers: request.headers
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}) : request;
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};
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this._precacheController = precacheController;
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}
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}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* @param {string} groupTitle
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* @param {Array<string>} deletedURLs
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*
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* @private
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*/
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const logGroup = (groupTitle, deletedURLs) => {
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logger_js.logger.groupCollapsed(groupTitle);
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for (const url of deletedURLs) {
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logger_js.logger.log(url);
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}
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logger_js.logger.groupEnd();
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};
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/**
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* @param {Array<string>} deletedURLs
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*
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* @private
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* @memberof workbox-precaching
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*/
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function printCleanupDetails(deletedURLs) {
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const deletionCount = deletedURLs.length;
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if (deletionCount > 0) {
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logger_js.logger.groupCollapsed(`During precaching cleanup, ` + `${deletionCount} cached ` + `request${deletionCount === 1 ? ' was' : 's were'} deleted.`);
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logGroup('Deleted Cache Requests', deletedURLs);
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logger_js.logger.groupEnd();
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}
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}
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/*
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Copyright 2018 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* @param {string} groupTitle
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* @param {Array<string>} urls
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*
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* @private
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*/
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function _nestedGroup(groupTitle, urls) {
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if (urls.length === 0) {
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return;
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}
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logger_js.logger.groupCollapsed(groupTitle);
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for (const url of urls) {
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logger_js.logger.log(url);
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}
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logger_js.logger.groupEnd();
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}
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/**
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* @param {Array<string>} urlsToPrecache
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* @param {Array<string>} urlsAlreadyPrecached
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*
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* @private
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* @memberof workbox-precaching
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*/
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function printInstallDetails(urlsToPrecache, urlsAlreadyPrecached) {
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const precachedCount = urlsToPrecache.length;
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const alreadyPrecachedCount = urlsAlreadyPrecached.length;
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if (precachedCount || alreadyPrecachedCount) {
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let message = `Precaching ${precachedCount} file${precachedCount === 1 ? '' : 's'}.`;
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if (alreadyPrecachedCount > 0) {
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message += ` ${alreadyPrecachedCount} ` + `file${alreadyPrecachedCount === 1 ? ' is' : 's are'} already cached.`;
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}
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logger_js.logger.groupCollapsed(message);
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_nestedGroup(`View newly precached URLs.`, urlsToPrecache);
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_nestedGroup(`View previously precached URLs.`, urlsAlreadyPrecached);
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logger_js.logger.groupEnd();
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}
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}
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/*
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Copyright 2020 Google LLC
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Use of this source code is governed by an MIT-style
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license that can be found in the LICENSE file or at
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https://opensource.org/licenses/MIT.
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*/
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/**
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* A {@link workbox-strategies.Strategy} implementation
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* specifically designed to work with
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* {@link workbox-precaching.PrecacheController}
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* to both cache and fetch precached assets.
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*
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* Note: an instance of this class is created automatically when creating a
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* `PrecacheController`; it's generally not necessary to create this yourself.
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*
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* @extends workbox-strategies.Strategy
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* @memberof workbox-precaching
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*/
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class PrecacheStrategy extends Strategy_js.Strategy {
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/**
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*
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* @param {Object} [options]
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* @param {string} [options.cacheName] Cache name to store and retrieve
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* requests. Defaults to the cache names provided by
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* {@link workbox-core.cacheNames}.
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* @param {Array<Object>} [options.plugins] {@link https://developers.google.com/web/tools/workbox/guides/using-plugins|Plugins}
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* to use in conjunction with this caching strategy.
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* @param {Object} [options.fetchOptions] Values passed along to the
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* {@link https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters|init}
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* of all fetch() requests made by this strategy.
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* @param {Object} [options.matchOptions] The
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* {@link https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions|CacheQueryOptions}
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* for any `cache.match()` or `cache.put()` calls made by this strategy.
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* @param {boolean} [options.fallbackToNetwork=true] Whether to attempt to
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* get the response from the network if there's a precache miss.
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*/
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constructor(options = {}) {
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options.cacheName = cacheNames_js.cacheNames.getPrecacheName(options.cacheName);
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super(options);
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this._fallbackToNetwork = options.fallbackToNetwork === false ? false : true; // Redirected responses cannot be used to satisfy a navigation request, so
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// any redirected response must be "copied" rather than cloned, so the new
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// response doesn't contain the `redirected` flag. See:
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// https://bugs.chromium.org/p/chromium/issues/detail?id=669363&desc=2#c1
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this.plugins.push(PrecacheStrategy.copyRedirectedCacheableResponsesPlugin);
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}
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/**
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* @private
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* @param {Request|string} request A request to run this strategy for.
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* @param {workbox-strategies.StrategyHandler} handler The event that
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* triggered the request.
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* @return {Promise<Response>}
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*/
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async _handle(request, handler) {
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const response = await handler.cacheMatch(request);
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if (response) {
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return response;
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} // If this is an `install` event for an entry that isn't already cached,
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// then populate the cache.
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if (handler.event && handler.event.type === 'install') {
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return await this._handleInstall(request, handler);
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} // Getting here means something went wrong. An entry that should have been
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// precached wasn't found in the cache.
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return await this._handleFetch(request, handler);
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}
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async _handleFetch(request, handler) {
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let response;
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const params = handler.params || {}; // Fall back to the network if we're configured to do so.
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if (this._fallbackToNetwork) {
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{
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logger_js.logger.warn(`The precached response for ` + `${getFriendlyURL_js.getFriendlyURL(request.url)} in ${this.cacheName} was not ` + `found. Falling back to the network.`);
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}
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const integrityInManifest = params.integrity;
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const integrityInRequest = request.integrity;
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const noIntegrityConflict = !integrityInRequest || integrityInRequest === integrityInManifest; // Do not add integrity if the original request is no-cors
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// See https://github.com/GoogleChrome/workbox/issues/3096
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response = await handler.fetch(new Request(request, {
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integrity: request.mode !== 'no-cors' ? integrityInRequest || integrityInManifest : undefined
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})); // It's only "safe" to repair the cache if we're using SRI to guarantee
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// that the response matches the precache manifest's expectations,
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// and there's either a) no integrity property in the incoming request
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// or b) there is an integrity, and it matches the precache manifest.
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// See https://github.com/GoogleChrome/workbox/issues/2858
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// Also if the original request users no-cors we don't use integrity.
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// See https://github.com/GoogleChrome/workbox/issues/3096
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if (integrityInManifest && noIntegrityConflict && request.mode !== 'no-cors') {
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this._useDefaultCacheabilityPluginIfNeeded();
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const wasCached = await handler.cachePut(request, response.clone());
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{
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if (wasCached) {
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logger_js.logger.log(`A response for ${getFriendlyURL_js.getFriendlyURL(request.url)} ` + `was used to "repair" the precache.`);
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}
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}
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}
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} else {
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// This shouldn't normally happen, but there are edge cases:
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// https://github.com/GoogleChrome/workbox/issues/1441
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throw new WorkboxError_js.WorkboxError('missing-precache-entry', {
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cacheName: this.cacheName,
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url: request.url
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});
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}
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{
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const cacheKey = params.cacheKey || (await handler.getCacheKey(request, 'read')); // Workbox is going to handle the route.
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// print the routing details to the console.
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logger_js.logger.groupCollapsed(`Precaching is responding to: ` + getFriendlyURL_js.getFriendlyURL(request.url));
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logger_js.logger.log(`Serving the precached url: ${getFriendlyURL_js.getFriendlyURL(cacheKey instanceof Request ? cacheKey.url : cacheKey)}`);
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logger_js.logger.groupCollapsed(`View request details here.`);
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logger_js.logger.log(request);
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logger_js.logger.groupEnd();
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logger_js.logger.groupCollapsed(`View response details here.`);
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logger_js.logger.log(response);
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logger_js.logger.groupEnd();
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logger_js.logger.groupEnd();
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}
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return response;
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}
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async _handleInstall(request, handler) {
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this._useDefaultCacheabilityPluginIfNeeded();
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const response = await handler.fetch(request); // Make sure we defer cachePut() until after we know the response
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// should be cached; see https://github.com/GoogleChrome/workbox/issues/2737
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const wasCached = await handler.cachePut(request, response.clone());
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if (!wasCached) {
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// Throwing here will lead to the `install` handler failing, which
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// we want to do if *any* of the responses aren't safe to cache.
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throw new WorkboxError_js.WorkboxError('bad-precaching-response', {
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url: request.url,
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status: response.status
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});
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}
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return response;
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}
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/**
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* This method is complex, as there a number of things to account for:
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*
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* The `plugins` array can be set at construction, and/or it might be added to
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* to at any time before the strategy is used.
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*
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* At the time the strategy is used (i.e. during an `install` event), there
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* needs to be at least one plugin that implements `cacheWillUpdate` in the
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* array, other than `copyRedirectedCacheableResponsesPlugin`.
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*
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* - If this method is called and there are no suitable `cacheWillUpdate`
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* plugins, we need to add `defaultPrecacheCacheabilityPlugin`.
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*
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* - If this method is called and there is exactly one `cacheWillUpdate`, then
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* we don't have to do anything (this might be a previously added
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* `defaultPrecacheCacheabilityPlugin`, or it might be a custom plugin).
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*
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* - If this method is called and there is more than one `cacheWillUpdate`,
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* then we need to check if one is `defaultPrecacheCacheabilityPlugin`. If so,
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* we need to remove it. (This situation is unlikely, but it could happen if
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* the strategy is used multiple times, the first without a `cacheWillUpdate`,
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* and then later on after manually adding a custom `cacheWillUpdate`.)
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*
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* See https://github.com/GoogleChrome/workbox/issues/2737 for more context.
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*
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* @private
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*/
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_useDefaultCacheabilityPluginIfNeeded() {
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let defaultPluginIndex = null;
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let cacheWillUpdatePluginCount = 0;
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for (const [index, plugin] of this.plugins.entries()) {
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// Ignore the copy redirected plugin when determining what to do.
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if (plugin === PrecacheStrategy.copyRedirectedCacheableResponsesPlugin) {
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continue;
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} // Save the default plugin's index, in case it needs to be removed.
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if (plugin === PrecacheStrategy.defaultPrecacheCacheabilityPlugin) {
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defaultPluginIndex = index;
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}
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if (plugin.cacheWillUpdate) {
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cacheWillUpdatePluginCount++;
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}
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}
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if (cacheWillUpdatePluginCount === 0) {
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this.plugins.push(PrecacheStrategy.defaultPrecacheCacheabilityPlugin);
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} else if (cacheWillUpdatePluginCount > 1 && defaultPluginIndex !== null) {
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// Only remove the default plugin; multiple custom plugins are allowed.
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this.plugins.splice(defaultPluginIndex, 1);
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} // Nothing needs to be done if cacheWillUpdatePluginCount is 1
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}
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}
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PrecacheStrategy.defaultPrecacheCacheabilityPlugin = {
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async cacheWillUpdate({
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response
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}) {
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if (!response || response.status >= 400) {
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return null;
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}
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return response;
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}
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};
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PrecacheStrategy.copyRedirectedCacheableResponsesPlugin = {
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async cacheWillUpdate({
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response
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}) {
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return response.redirected ? await copyResponse_js.copyResponse(response) : response;
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}
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};
|
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|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Performs efficient precaching of assets.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
class PrecacheController {
|
|
/**
|
|
* Create a new PrecacheController.
|
|
*
|
|
* @param {Object} [options]
|
|
* @param {string} [options.cacheName] The cache to use for precaching.
|
|
* @param {string} [options.plugins] Plugins to use when precaching as well
|
|
* as responding to fetch events for precached assets.
|
|
* @param {boolean} [options.fallbackToNetwork=true] Whether to attempt to
|
|
* get the response from the network if there's a precache miss.
|
|
*/
|
|
constructor({
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cacheName,
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plugins = [],
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fallbackToNetwork = true
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} = {}) {
|
|
this._urlsToCacheKeys = new Map();
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this._urlsToCacheModes = new Map();
|
|
this._cacheKeysToIntegrities = new Map();
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this._strategy = new PrecacheStrategy({
|
|
cacheName: cacheNames_js.cacheNames.getPrecacheName(cacheName),
|
|
plugins: [...plugins, new PrecacheCacheKeyPlugin({
|
|
precacheController: this
|
|
})],
|
|
fallbackToNetwork
|
|
}); // Bind the install and activate methods to the instance.
|
|
|
|
this.install = this.install.bind(this);
|
|
this.activate = this.activate.bind(this);
|
|
}
|
|
/**
|
|
* @type {workbox-precaching.PrecacheStrategy} The strategy created by this controller and
|
|
* used to cache assets and respond to fetch events.
|
|
*/
|
|
|
|
|
|
get strategy() {
|
|
return this._strategy;
|
|
}
|
|
/**
|
|
* Adds items to the precache list, removing any duplicates and
|
|
* stores the files in the
|
|
* {@link workbox-core.cacheNames|"precache cache"} when the service
|
|
* worker installs.
|
|
*
|
|
* This method can be called multiple times.
|
|
*
|
|
* @param {Array<Object|string>} [entries=[]] Array of entries to precache.
|
|
*/
|
|
|
|
|
|
precache(entries) {
|
|
this.addToCacheList(entries);
|
|
|
|
if (!this._installAndActiveListenersAdded) {
|
|
self.addEventListener('install', this.install);
|
|
self.addEventListener('activate', this.activate);
|
|
this._installAndActiveListenersAdded = true;
|
|
}
|
|
}
|
|
/**
|
|
* This method will add items to the precache list, removing duplicates
|
|
* and ensuring the information is valid.
|
|
*
|
|
* @param {Array<workbox-precaching.PrecacheController.PrecacheEntry|string>} entries
|
|
* Array of entries to precache.
|
|
*/
|
|
|
|
|
|
addToCacheList(entries) {
|
|
{
|
|
assert_js.assert.isArray(entries, {
|
|
moduleName: 'workbox-precaching',
|
|
className: 'PrecacheController',
|
|
funcName: 'addToCacheList',
|
|
paramName: 'entries'
|
|
});
|
|
}
|
|
|
|
const urlsToWarnAbout = [];
|
|
|
|
for (const entry of entries) {
|
|
// See https://github.com/GoogleChrome/workbox/issues/2259
|
|
if (typeof entry === 'string') {
|
|
urlsToWarnAbout.push(entry);
|
|
} else if (entry && entry.revision === undefined) {
|
|
urlsToWarnAbout.push(entry.url);
|
|
}
|
|
|
|
const {
|
|
cacheKey,
|
|
url
|
|
} = createCacheKey(entry);
|
|
const cacheMode = typeof entry !== 'string' && entry.revision ? 'reload' : 'default';
|
|
|
|
if (this._urlsToCacheKeys.has(url) && this._urlsToCacheKeys.get(url) !== cacheKey) {
|
|
throw new WorkboxError_js.WorkboxError('add-to-cache-list-conflicting-entries', {
|
|
firstEntry: this._urlsToCacheKeys.get(url),
|
|
secondEntry: cacheKey
|
|
});
|
|
}
|
|
|
|
if (typeof entry !== 'string' && entry.integrity) {
|
|
if (this._cacheKeysToIntegrities.has(cacheKey) && this._cacheKeysToIntegrities.get(cacheKey) !== entry.integrity) {
|
|
throw new WorkboxError_js.WorkboxError('add-to-cache-list-conflicting-integrities', {
|
|
url
|
|
});
|
|
}
|
|
|
|
this._cacheKeysToIntegrities.set(cacheKey, entry.integrity);
|
|
}
|
|
|
|
this._urlsToCacheKeys.set(url, cacheKey);
|
|
|
|
this._urlsToCacheModes.set(url, cacheMode);
|
|
|
|
if (urlsToWarnAbout.length > 0) {
|
|
const warningMessage = `Workbox is precaching URLs without revision ` + `info: ${urlsToWarnAbout.join(', ')}\nThis is generally NOT safe. ` + `Learn more at https://bit.ly/wb-precache`;
|
|
|
|
{
|
|
logger_js.logger.warn(warningMessage);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* Precaches new and updated assets. Call this method from the service worker
|
|
* install event.
|
|
*
|
|
* Note: this method calls `event.waitUntil()` for you, so you do not need
|
|
* to call it yourself in your event handlers.
|
|
*
|
|
* @param {ExtendableEvent} event
|
|
* @return {Promise<workbox-precaching.InstallResult>}
|
|
*/
|
|
|
|
|
|
install(event) {
|
|
// waitUntil returns Promise<any>
|
|
// eslint-disable-next-line @typescript-eslint/no-unsafe-return
|
|
return waitUntil_js.waitUntil(event, async () => {
|
|
const installReportPlugin = new PrecacheInstallReportPlugin();
|
|
this.strategy.plugins.push(installReportPlugin); // Cache entries one at a time.
|
|
// See https://github.com/GoogleChrome/workbox/issues/2528
|
|
|
|
for (const [url, cacheKey] of this._urlsToCacheKeys) {
|
|
const integrity = this._cacheKeysToIntegrities.get(cacheKey);
|
|
|
|
const cacheMode = this._urlsToCacheModes.get(url);
|
|
|
|
const request = new Request(url, {
|
|
integrity,
|
|
cache: cacheMode,
|
|
credentials: 'same-origin'
|
|
});
|
|
await Promise.all(this.strategy.handleAll({
|
|
params: {
|
|
cacheKey
|
|
},
|
|
request,
|
|
event
|
|
}));
|
|
}
|
|
|
|
const {
|
|
updatedURLs,
|
|
notUpdatedURLs
|
|
} = installReportPlugin;
|
|
|
|
{
|
|
printInstallDetails(updatedURLs, notUpdatedURLs);
|
|
}
|
|
|
|
return {
|
|
updatedURLs,
|
|
notUpdatedURLs
|
|
};
|
|
});
|
|
}
|
|
/**
|
|
* Deletes assets that are no longer present in the current precache manifest.
|
|
* Call this method from the service worker activate event.
|
|
*
|
|
* Note: this method calls `event.waitUntil()` for you, so you do not need
|
|
* to call it yourself in your event handlers.
|
|
*
|
|
* @param {ExtendableEvent} event
|
|
* @return {Promise<workbox-precaching.CleanupResult>}
|
|
*/
|
|
|
|
|
|
activate(event) {
|
|
// waitUntil returns Promise<any>
|
|
// eslint-disable-next-line @typescript-eslint/no-unsafe-return
|
|
return waitUntil_js.waitUntil(event, async () => {
|
|
const cache = await self.caches.open(this.strategy.cacheName);
|
|
const currentlyCachedRequests = await cache.keys();
|
|
const expectedCacheKeys = new Set(this._urlsToCacheKeys.values());
|
|
const deletedURLs = [];
|
|
|
|
for (const request of currentlyCachedRequests) {
|
|
if (!expectedCacheKeys.has(request.url)) {
|
|
await cache.delete(request);
|
|
deletedURLs.push(request.url);
|
|
}
|
|
}
|
|
|
|
{
|
|
printCleanupDetails(deletedURLs);
|
|
}
|
|
|
|
return {
|
|
deletedURLs
|
|
};
|
|
});
|
|
}
|
|
/**
|
|
* Returns a mapping of a precached URL to the corresponding cache key, taking
|
|
* into account the revision information for the URL.
|
|
*
|
|
* @return {Map<string, string>} A URL to cache key mapping.
|
|
*/
|
|
|
|
|
|
getURLsToCacheKeys() {
|
|
return this._urlsToCacheKeys;
|
|
}
|
|
/**
|
|
* Returns a list of all the URLs that have been precached by the current
|
|
* service worker.
|
|
*
|
|
* @return {Array<string>} The precached URLs.
|
|
*/
|
|
|
|
|
|
getCachedURLs() {
|
|
return [...this._urlsToCacheKeys.keys()];
|
|
}
|
|
/**
|
|
* Returns the cache key used for storing a given URL. If that URL is
|
|
* unversioned, like `/index.html', then the cache key will be the original
|
|
* URL with a search parameter appended to it.
|
|
*
|
|
* @param {string} url A URL whose cache key you want to look up.
|
|
* @return {string} The versioned URL that corresponds to a cache key
|
|
* for the original URL, or undefined if that URL isn't precached.
|
|
*/
|
|
|
|
|
|
getCacheKeyForURL(url) {
|
|
const urlObject = new URL(url, location.href);
|
|
return this._urlsToCacheKeys.get(urlObject.href);
|
|
}
|
|
/**
|
|
* @param {string} url A cache key whose SRI you want to look up.
|
|
* @return {string} The subresource integrity associated with the cache key,
|
|
* or undefined if it's not set.
|
|
*/
|
|
|
|
|
|
getIntegrityForCacheKey(cacheKey) {
|
|
return this._cacheKeysToIntegrities.get(cacheKey);
|
|
}
|
|
/**
|
|
* This acts as a drop-in replacement for
|
|
* [`cache.match()`](https://developer.mozilla.org/en-US/docs/Web/API/Cache/match)
|
|
* with the following differences:
|
|
*
|
|
* - It knows what the name of the precache is, and only checks in that cache.
|
|
* - It allows you to pass in an "original" URL without versioning parameters,
|
|
* and it will automatically look up the correct cache key for the currently
|
|
* active revision of that URL.
|
|
*
|
|
* E.g., `matchPrecache('index.html')` will find the correct precached
|
|
* response for the currently active service worker, even if the actual cache
|
|
* key is `'/index.html?__WB_REVISION__=1234abcd'`.
|
|
*
|
|
* @param {string|Request} request The key (without revisioning parameters)
|
|
* to look up in the precache.
|
|
* @return {Promise<Response|undefined>}
|
|
*/
|
|
|
|
|
|
async matchPrecache(request) {
|
|
const url = request instanceof Request ? request.url : request;
|
|
const cacheKey = this.getCacheKeyForURL(url);
|
|
|
|
if (cacheKey) {
|
|
const cache = await self.caches.open(this.strategy.cacheName);
|
|
return cache.match(cacheKey);
|
|
}
|
|
|
|
return undefined;
|
|
}
|
|
/**
|
|
* Returns a function that looks up `url` in the precache (taking into
|
|
* account revision information), and returns the corresponding `Response`.
|
|
*
|
|
* @param {string} url The precached URL which will be used to lookup the
|
|
* `Response`.
|
|
* @return {workbox-routing~handlerCallback}
|
|
*/
|
|
|
|
|
|
createHandlerBoundToURL(url) {
|
|
const cacheKey = this.getCacheKeyForURL(url);
|
|
|
|
if (!cacheKey) {
|
|
throw new WorkboxError_js.WorkboxError('non-precached-url', {
|
|
url
|
|
});
|
|
}
|
|
|
|
return options => {
|
|
options.request = new Request(url);
|
|
options.params = Object.assign({
|
|
cacheKey
|
|
}, options.params);
|
|
return this.strategy.handle(options);
|
|
};
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
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 precacheController;
|
|
/**
|
|
* @return {PrecacheController}
|
|
* @private
|
|
*/
|
|
|
|
const getOrCreatePrecacheController = () => {
|
|
if (!precacheController) {
|
|
precacheController = new PrecacheController();
|
|
}
|
|
|
|
return precacheController;
|
|
};
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Adds plugins to the precaching strategy.
|
|
*
|
|
* @param {Array<Object>} plugins
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function addPlugins(plugins) {
|
|
const precacheController = getOrCreatePrecacheController();
|
|
precacheController.strategy.plugins.push(...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.
|
|
*/
|
|
/**
|
|
* Removes any URL search parameters that should be ignored.
|
|
*
|
|
* @param {URL} urlObject The original URL.
|
|
* @param {Array<RegExp>} ignoreURLParametersMatching RegExps to test against
|
|
* each search parameter name. Matches mean that the search parameter should be
|
|
* ignored.
|
|
* @return {URL} The URL with any ignored search parameters removed.
|
|
*
|
|
* @private
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function removeIgnoredSearchParams(urlObject, ignoreURLParametersMatching = []) {
|
|
// Convert the iterable into an array at the start of the loop to make sure
|
|
// deletion doesn't mess up iteration.
|
|
for (const paramName of [...urlObject.searchParams.keys()]) {
|
|
if (ignoreURLParametersMatching.some(regExp => regExp.test(paramName))) {
|
|
urlObject.searchParams.delete(paramName);
|
|
}
|
|
}
|
|
|
|
return urlObject;
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Generator function that yields possible variations on the original URL to
|
|
* check, one at a time.
|
|
*
|
|
* @param {string} url
|
|
* @param {Object} options
|
|
*
|
|
* @private
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function* generateURLVariations(url, {
|
|
ignoreURLParametersMatching = [/^utm_/, /^fbclid$/],
|
|
directoryIndex = 'index.html',
|
|
cleanURLs = true,
|
|
urlManipulation
|
|
} = {}) {
|
|
const urlObject = new URL(url, location.href);
|
|
urlObject.hash = '';
|
|
yield urlObject.href;
|
|
const urlWithoutIgnoredParams = removeIgnoredSearchParams(urlObject, ignoreURLParametersMatching);
|
|
yield urlWithoutIgnoredParams.href;
|
|
|
|
if (directoryIndex && urlWithoutIgnoredParams.pathname.endsWith('/')) {
|
|
const directoryURL = new URL(urlWithoutIgnoredParams.href);
|
|
directoryURL.pathname += directoryIndex;
|
|
yield directoryURL.href;
|
|
}
|
|
|
|
if (cleanURLs) {
|
|
const cleanURL = new URL(urlWithoutIgnoredParams.href);
|
|
cleanURL.pathname += '.html';
|
|
yield cleanURL.href;
|
|
}
|
|
|
|
if (urlManipulation) {
|
|
const additionalURLs = urlManipulation({
|
|
url: urlObject
|
|
});
|
|
|
|
for (const urlToAttempt of additionalURLs) {
|
|
yield urlToAttempt.href;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
Copyright 2020 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 subclass of {@link workbox-routing.Route} that takes a
|
|
* {@link workbox-precaching.PrecacheController}
|
|
* instance and uses it to match incoming requests and handle fetching
|
|
* responses from the precache.
|
|
*
|
|
* @memberof workbox-precaching
|
|
* @extends workbox-routing.Route
|
|
*/
|
|
|
|
class PrecacheRoute extends Route_js.Route {
|
|
/**
|
|
* @param {PrecacheController} precacheController A `PrecacheController`
|
|
* instance used to both match requests and respond to fetch events.
|
|
* @param {Object} [options] Options to control how requests are matched
|
|
* against the list of precached URLs.
|
|
* @param {string} [options.directoryIndex=index.html] The `directoryIndex` will
|
|
* check cache entries for a URLs ending with '/' to see if there is a hit when
|
|
* appending the `directoryIndex` value.
|
|
* @param {Array<RegExp>} [options.ignoreURLParametersMatching=[/^utm_/, /^fbclid$/]] An
|
|
* array of regex's to remove search params when looking for a cache match.
|
|
* @param {boolean} [options.cleanURLs=true] The `cleanURLs` option will
|
|
* check the cache for the URL with a `.html` added to the end of the end.
|
|
* @param {workbox-precaching~urlManipulation} [options.urlManipulation]
|
|
* This is a function that should take a URL and return an array of
|
|
* alternative URLs that should be checked for precache matches.
|
|
*/
|
|
constructor(precacheController, options) {
|
|
const match = ({
|
|
request
|
|
}) => {
|
|
const urlsToCacheKeys = precacheController.getURLsToCacheKeys();
|
|
|
|
for (const possibleURL of generateURLVariations(request.url, options)) {
|
|
const cacheKey = urlsToCacheKeys.get(possibleURL);
|
|
|
|
if (cacheKey) {
|
|
const integrity = precacheController.getIntegrityForCacheKey(cacheKey);
|
|
return {
|
|
cacheKey,
|
|
integrity
|
|
};
|
|
}
|
|
}
|
|
|
|
{
|
|
logger_js.logger.debug(`Precaching did not find a match for ` + getFriendlyURL_js.getFriendlyURL(request.url));
|
|
}
|
|
|
|
return;
|
|
};
|
|
|
|
super(match, precacheController.strategy);
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Add a `fetch` listener to the service worker that will
|
|
* respond to
|
|
* [network requests]{@link https://developer.mozilla.org/en-US/docs/Web/API/Service_Worker_API/Using_Service_Workers#Custom_responses_to_requests}
|
|
* with precached assets.
|
|
*
|
|
* Requests for assets that aren't precached, the `FetchEvent` will not be
|
|
* responded to, allowing the event to fall through to other `fetch` event
|
|
* listeners.
|
|
*
|
|
* @param {Object} [options] See the {@link workbox-precaching.PrecacheRoute}
|
|
* options.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function addRoute(options) {
|
|
const precacheController = getOrCreatePrecacheController();
|
|
const precacheRoute = new PrecacheRoute(precacheController, options);
|
|
registerRoute_js.registerRoute(precacheRoute);
|
|
}
|
|
|
|
/*
|
|
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 SUBSTRING_TO_FIND = '-precache-';
|
|
/**
|
|
* Cleans up incompatible precaches that were created by older versions of
|
|
* Workbox, by a service worker registered under the current scope.
|
|
*
|
|
* This is meant to be called as part of the `activate` event.
|
|
*
|
|
* This should be safe to use as long as you don't include `substringToFind`
|
|
* (defaulting to `-precache-`) in your non-precache cache names.
|
|
*
|
|
* @param {string} currentPrecacheName The cache name currently in use for
|
|
* precaching. This cache won't be deleted.
|
|
* @param {string} [substringToFind='-precache-'] Cache names which include this
|
|
* substring will be deleted (excluding `currentPrecacheName`).
|
|
* @return {Array<string>} A list of all the cache names that were deleted.
|
|
*
|
|
* @private
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
const deleteOutdatedCaches = async (currentPrecacheName, substringToFind = SUBSTRING_TO_FIND) => {
|
|
const cacheNames = await self.caches.keys();
|
|
const cacheNamesToDelete = cacheNames.filter(cacheName => {
|
|
return cacheName.includes(substringToFind) && cacheName.includes(self.registration.scope) && cacheName !== currentPrecacheName;
|
|
});
|
|
await Promise.all(cacheNamesToDelete.map(cacheName => self.caches.delete(cacheName)));
|
|
return cacheNamesToDelete;
|
|
};
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Adds an `activate` event listener which will clean up incompatible
|
|
* precaches that were created by older versions of Workbox.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function cleanupOutdatedCaches() {
|
|
// See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
|
|
self.addEventListener('activate', event => {
|
|
const cacheName = cacheNames_js.cacheNames.getPrecacheName();
|
|
event.waitUntil(deleteOutdatedCaches(cacheName).then(cachesDeleted => {
|
|
{
|
|
if (cachesDeleted.length > 0) {
|
|
logger_js.logger.log(`The following out-of-date precaches were cleaned up ` + `automatically:`, cachesDeleted);
|
|
}
|
|
}
|
|
}));
|
|
});
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Helper function that calls
|
|
* {@link PrecacheController#createHandlerBoundToURL} on the default
|
|
* {@link PrecacheController} instance.
|
|
*
|
|
* If you are creating your own {@link PrecacheController}, then call the
|
|
* {@link PrecacheController#createHandlerBoundToURL} on that instance,
|
|
* instead of using this function.
|
|
*
|
|
* @param {string} url The precached URL which will be used to lookup the
|
|
* `Response`.
|
|
* @param {boolean} [fallbackToNetwork=true] Whether to attempt to get the
|
|
* response from the network if there's a precache miss.
|
|
* @return {workbox-routing~handlerCallback}
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function createHandlerBoundToURL(url) {
|
|
const precacheController = getOrCreatePrecacheController();
|
|
return precacheController.createHandlerBoundToURL(url);
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Takes in a URL, and returns the corresponding URL that could be used to
|
|
* lookup the entry in the precache.
|
|
*
|
|
* If a relative URL is provided, the location of the service worker file will
|
|
* be used as the base.
|
|
*
|
|
* For precached entries without revision information, the cache key will be the
|
|
* same as the original URL.
|
|
*
|
|
* For precached entries with revision information, the cache key will be the
|
|
* original URL with the addition of a query parameter used for keeping track of
|
|
* the revision info.
|
|
*
|
|
* @param {string} url The URL whose cache key to look up.
|
|
* @return {string} The cache key that corresponds to that URL.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function getCacheKeyForURL(url) {
|
|
const precacheController = getOrCreatePrecacheController();
|
|
return precacheController.getCacheKeyForURL(url);
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Helper function that calls
|
|
* {@link PrecacheController#matchPrecache} on the default
|
|
* {@link PrecacheController} instance.
|
|
*
|
|
* If you are creating your own {@link PrecacheController}, then call
|
|
* {@link PrecacheController#matchPrecache} on that instance,
|
|
* instead of using this function.
|
|
*
|
|
* @param {string|Request} request The key (without revisioning parameters)
|
|
* to look up in the precache.
|
|
* @return {Promise<Response|undefined>}
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function matchPrecache(request) {
|
|
const precacheController = getOrCreatePrecacheController();
|
|
return precacheController.matchPrecache(request);
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* Adds items to the precache list, removing any duplicates and
|
|
* stores the files in the
|
|
* {@link workbox-core.cacheNames|"precache cache"} when the service
|
|
* worker installs.
|
|
*
|
|
* This method can be called multiple times.
|
|
*
|
|
* Please note: This method **will not** serve any of the cached files for you.
|
|
* It only precaches files. To respond to a network request you call
|
|
* {@link workbox-precaching.addRoute}.
|
|
*
|
|
* If you have a single array of files to precache, you can just call
|
|
* {@link workbox-precaching.precacheAndRoute}.
|
|
*
|
|
* @param {Array<Object|string>} [entries=[]] Array of entries to precache.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function precache(entries) {
|
|
const precacheController = getOrCreatePrecacheController();
|
|
precacheController.precache(entries);
|
|
}
|
|
|
|
/*
|
|
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.
|
|
*/
|
|
/**
|
|
* This method will add entries to the precache list and add a route to
|
|
* respond to fetch events.
|
|
*
|
|
* This is a convenience method that will call
|
|
* {@link workbox-precaching.precache} and
|
|
* {@link workbox-precaching.addRoute} in a single call.
|
|
*
|
|
* @param {Array<Object|string>} entries Array of entries to precache.
|
|
* @param {Object} [options] See the
|
|
* {@link workbox-precaching.PrecacheRoute} options.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
function precacheAndRoute(entries, options) {
|
|
precache(entries);
|
|
addRoute(options);
|
|
}
|
|
|
|
/*
|
|
Copyright 2020 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.
|
|
*/
|
|
/**
|
|
* `PrecacheFallbackPlugin` allows you to specify an "offline fallback"
|
|
* response to be used when a given strategy is unable to generate a response.
|
|
*
|
|
* It does this by intercepting the `handlerDidError` plugin callback
|
|
* and returning a precached response, taking the expected revision parameter
|
|
* into account automatically.
|
|
*
|
|
* Unless you explicitly pass in a `PrecacheController` instance to the
|
|
* constructor, the default instance will be used. Generally speaking, most
|
|
* developers will end up using the default.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
|
|
class PrecacheFallbackPlugin {
|
|
/**
|
|
* Constructs a new PrecacheFallbackPlugin with the associated fallbackURL.
|
|
*
|
|
* @param {Object} config
|
|
* @param {string} config.fallbackURL A precached URL to use as the fallback
|
|
* if the associated strategy can't generate a response.
|
|
* @param {PrecacheController} [config.precacheController] An optional
|
|
* PrecacheController instance. If not provided, the default
|
|
* PrecacheController will be used.
|
|
*/
|
|
constructor({
|
|
fallbackURL,
|
|
precacheController
|
|
}) {
|
|
/**
|
|
* @return {Promise<Response>} The precache response for the fallback URL.
|
|
*
|
|
* @private
|
|
*/
|
|
this.handlerDidError = () => this._precacheController.matchPrecache(this._fallbackURL);
|
|
|
|
this._fallbackURL = fallbackURL;
|
|
this._precacheController = precacheController || getOrCreatePrecacheController();
|
|
}
|
|
|
|
}
|
|
|
|
exports.PrecacheController = PrecacheController;
|
|
exports.PrecacheFallbackPlugin = PrecacheFallbackPlugin;
|
|
exports.PrecacheRoute = PrecacheRoute;
|
|
exports.PrecacheStrategy = PrecacheStrategy;
|
|
exports.addPlugins = addPlugins;
|
|
exports.addRoute = addRoute;
|
|
exports.cleanupOutdatedCaches = cleanupOutdatedCaches;
|
|
exports.createHandlerBoundToURL = createHandlerBoundToURL;
|
|
exports.getCacheKeyForURL = getCacheKeyForURL;
|
|
exports.matchPrecache = matchPrecache;
|
|
exports.precache = precache;
|
|
exports.precacheAndRoute = precacheAndRoute;
|
|
|
|
return exports;
|
|
|
|
}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core, workbox.core._private, workbox.strategies, workbox.routing, workbox.routing));
|
|
//# sourceMappingURL=workbox-precaching.dev.js.map
|