First commit

node_modules/workbox-precaching/src/PrecacheController.ts

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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.
+*/
+
+import {assert} from 'workbox-core/_private/assert.js';
+import {cacheNames} from 'workbox-core/_private/cacheNames.js';
+import {cacheWrapper} from 'workbox-core/_private/cacheWrapper.js';
+import {fetchWrapper} from 'workbox-core/_private/fetchWrapper.js';
+import {logger} from 'workbox-core/_private/logger.js';
+import {WorkboxError} from 'workbox-core/_private/WorkboxError.js';
+import {copyResponse} from 'workbox-core/copyResponse.js';
+import {RouteHandlerCallback, RouteHandlerCallbackOptions}
+    from 'workbox-core/types.js';
+import {WorkboxPlugin} from 'workbox-core/types.js';
+
+import {PrecacheEntry} from './_types.js';
+import {createCacheKey} from './utils/createCacheKey.js';
+import {printCleanupDetails} from './utils/printCleanupDetails.js';
+import {printInstallDetails} from './utils/printInstallDetails.js';
+
+import './_version.js';
+
+/**
+ * Performs efficient precaching of assets.
+ *
+ * @memberof module:workbox-precaching
+ */
+class PrecacheController {
+  private readonly _cacheName: string;
+  private readonly _urlsToCacheKeys: Map<string, string>;
+  private readonly _urlsToCacheModes: Map<string, "reload" | "default" | "no-store" | "no-cache" | "force-cache" | "only-if-cached">;
+  private readonly _cacheKeysToIntegrities: Map<string, string>;
+
+  /**
+   * Create a new PrecacheController.
+   *
+   * @param {string} [cacheName] An optional name for the cache, to override
+   * the default precache name.
+   */
+  constructor(cacheName?: string) {
+    this._cacheName = cacheNames.getPrecacheName(cacheName);
+    this._urlsToCacheKeys = new Map();
+    this._urlsToCacheModes = new Map();
+    this._cacheKeysToIntegrities = new Map();
+  }
+
+  /**
+   * This method will add items to the precache list, removing duplicates
+   * and ensuring the information is valid.
+   *
+   * @param {
+   * Array<module:workbox-precaching.PrecacheController.PrecacheEntry|string>
+   * } entries Array of entries to precache.
+   */
+  addToCacheList(entries: Array<PrecacheEntry|string>) {
+    if (process.env.NODE_ENV !== 'production') {
+      assert!.isArray(entries, {
+        moduleName: 'workbox-precaching',
+        className: 'PrecacheController',
+        funcName: 'addToCacheList',
+        paramName: 'entries',
+      });
+    }
+
+    const urlsToWarnAbout: string[] = [];
+    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('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('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`;
+        if (process.env.NODE_ENV === 'production') {
+          // Use console directly to display this warning without bloating
+          // bundle sizes by pulling in all of the logger codebase in prod.
+          console.warn(warningMessage);
+        } else {
+          logger.warn(warningMessage);
+        }
+      }
+    }
+  }
+
+  /**
+   * Precaches new and updated assets. Call this method from the service worker
+   * install event.
+   *
+   * @param {Object} options
+   * @param {Event} [options.event] The install event (if needed).
+   * @param {Array<Object>} [options.plugins] Plugins to be used for fetching
+   * and caching during install.
+   * @return {Promise<module:workbox-precaching.InstallResult>}
+   */
+  async install({event, plugins}: {
+    event?: ExtendableEvent;
+    plugins?: WorkboxPlugin[];
+  } = {}) {
+    if (process.env.NODE_ENV !== 'production') {
+      if (plugins) {
+        assert!.isArray(plugins, {
+          moduleName: 'workbox-precaching',
+          className: 'PrecacheController',
+          funcName: 'install',
+          paramName: 'plugins',
+        });
+      }
+    }
+
+    const toBePrecached: {cacheKey: string; url: string}[] = [];
+    const alreadyPrecached: string[] = [];
+
+    const cache = await self.caches.open(this._cacheName);
+    const alreadyCachedRequests = await cache.keys();
+    const existingCacheKeys = new Set(alreadyCachedRequests.map(
+        (request) => request.url));
+
+    for (const [url, cacheKey] of this._urlsToCacheKeys) {
+      if (existingCacheKeys.has(cacheKey)) {
+        alreadyPrecached.push(url);
+      } else {
+        toBePrecached.push({cacheKey, url});
+      }
+    }
+
+    const precacheRequests = toBePrecached.map(({cacheKey, url}) => {
+      const integrity = this._cacheKeysToIntegrities.get(cacheKey);
+      const cacheMode = this._urlsToCacheModes.get(url);
+      return this._addURLToCache({
+        cacheKey,
+        cacheMode,
+        event,
+        integrity,
+        plugins,
+        url,
+      });
+    });
+    await Promise.all(precacheRequests);
+
+    const updatedURLs = toBePrecached.map((item) => item.url);
+
+    if (process.env.NODE_ENV !== 'production') {
+      printInstallDetails(updatedURLs, alreadyPrecached);
+    }
+
+    return {
+      updatedURLs,
+      notUpdatedURLs: alreadyPrecached,
+    };
+  }
+
+  /**
+   * Deletes assets that are no longer present in the current precache manifest.
+   * Call this method from the service worker activate event.
+   *
+   * @return {Promise<module:workbox-precaching.CleanupResult>}
+   */
+  async activate() {
+    const cache = await self.caches.open(this._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);
+      }
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      printCleanupDetails(deletedURLs);
+    }
+
+    return {deletedURLs};
+  }
+
+  /**
+   * Requests the entry and saves it to the cache if the response is valid.
+   * By default, any response with a status code of less than 400 (including
+   * opaque responses) is considered valid.
+   *
+   * If you need to use custom criteria to determine what's valid and what
+   * isn't, then pass in an item in `options.plugins` that implements the
+   * `cacheWillUpdate()` lifecycle event.
+   *
+   * @private
+   * @param {Object} options
+   * @param {string} options.cacheKey The string to use a cache key.
+   * @param {string} options.url The URL to fetch and cache.
+   * @param {string} [options.cacheMode] The cache mode for the network request.
+   * @param {Event} [options.event] The install event (if passed).
+   * @param {Array<Object>} [options.plugins] An array of plugins to apply to
+   * fetch and caching.
+   * @param {string} [options.integrity] The value to use for the `integrity`
+   * field when making the request.
+   */
+  async _addURLToCache({cacheKey, url, cacheMode, event, plugins, integrity}: {
+    cacheKey: string;
+    url: string;
+    cacheMode: "reload" | "default" | "no-store" | "no-cache" | "force-cache" | "only-if-cached" | undefined;
+    event?: ExtendableEvent;
+    plugins?: WorkboxPlugin[];
+    integrity?: string;
+  }) {
+    const request = new Request(url, {
+      integrity,
+      cache: cacheMode,
+      credentials: 'same-origin',
+    });
+
+    let response = await fetchWrapper.fetch({
+      event,
+      plugins,
+      request,
+    });
+
+    // Allow developers to override the default logic about what is and isn't
+    // valid by passing in a plugin implementing cacheWillUpdate(), e.g.
+    // a `CacheableResponsePlugin` instance.
+    let cacheWillUpdatePlugin;
+    for (const plugin of (plugins || [])) {
+      if ('cacheWillUpdate' in plugin) {
+        cacheWillUpdatePlugin = plugin;
+      }
+    }
+
+    const isValidResponse = cacheWillUpdatePlugin ?
+      // Use a callback if provided. It returns a truthy value if valid.
+      // NOTE: invoke the method on the plugin instance so the `this` context
+      // is correct.
+      await cacheWillUpdatePlugin.cacheWillUpdate!({event, request, response}) :
+      // Otherwise, default to considering any response status under 400 valid.
+      // This includes, by default, considering opaque responses valid.
+      response.status < 400;
+
+    // Consider this a failure, leading to the `install` handler failing, if
+    // we get back an invalid response.
+    if (!isValidResponse) {
+      throw new WorkboxError('bad-precaching-response', {
+        url,
+        status: response.status,
+      });
+    }
+
+    // Redirected responses cannot be used to satisfy a navigation request, so
+    // any redirected response must be "copied" rather than cloned, so the new
+    // response doesn't contain the `redirected` flag. See:
+    // https://bugs.chromium.org/p/chromium/issues/detail?id=669363&desc=2#c1
+    if (response.redirected) {
+      response = await copyResponse(response);
+    }
+
+    await cacheWrapper.put({
+      event,
+      plugins,
+      response,
+      // `request` already uses `url`. We may be able to reuse it.
+      request: cacheKey === url ? request : new Request(cacheKey),
+      cacheName: this._cacheName,
+      matchOptions: {
+        ignoreSearch: true,
+      },
+    });
+  }
+
+  /**
+   * 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: string) {
+    const urlObject = new URL(url, location.href);
+    return this._urlsToCacheKeys.get(urlObject.href);
+  }
+
+  /**
+   * 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: string|Request): Promise<Response|undefined> {
+    const url = request instanceof Request ? request.url : request;
+    const cacheKey = this.getCacheKeyForURL(url);
+    if (cacheKey) {
+      const cache = await self.caches.open(this._cacheName);
+      return cache.match(cacheKey);
+    }
+    return undefined;
+  }
+
+  /**
+   * Returns a function that can be used within a
+   * {@link module:workbox-routing.Route} that will find a response for the
+   * incoming request against the precache.
+   *
+   * If for an unexpected reason there is a cache miss for the request,
+   * this will fall back to retrieving the `Response` via `fetch()` when
+   * `fallbackToNetwork` is `true`.
+   *
+   * @param {boolean} [fallbackToNetwork=true] Whether to attempt to get the
+   * response from the network if there's a precache miss.
+   * @return {module:workbox-routing~handlerCallback}
+   */
+  createHandler(fallbackToNetwork = true): RouteHandlerCallback {
+    return async ({request}: RouteHandlerCallbackOptions) => {
+      try {
+        const response = await this.matchPrecache(request);
+        if (response) {
+          return response;
+        }
+
+        // This shouldn't normally happen, but there are edge cases:
+        // https://github.com/GoogleChrome/workbox/issues/1441
+        throw new WorkboxError('missing-precache-entry', {
+          cacheName: this._cacheName,
+          url: request instanceof Request ? request.url : request,
+        });
+      } catch (error) {
+        if (fallbackToNetwork) {
+          if (process.env.NODE_ENV !== 'production') {
+            logger.debug(`Unable to respond with precached response. ` +
+                `Falling back to network.`, error);
+          }
+          return fetch(request);
+        }
+
+        throw error;
+      }
+    };
+  }
+
+  /**
+   * Returns a function that looks up `url` in the precache (taking into
+   * account revision information), and returns the corresponding `Response`.
+   *
+   * If for an unexpected reason there is a cache miss when looking up `url`,
+   * this will fall back to retrieving the `Response` via `fetch()` when
+   * `fallbackToNetwork` is `true`.
+   *
+   * @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 {module:workbox-routing~handlerCallback}
+   */
+  createHandlerBoundToURL(url: string, fallbackToNetwork = true): RouteHandlerCallback {
+    const cacheKey = this.getCacheKeyForURL(url);
+    if (!cacheKey) {
+      throw new WorkboxError('non-precached-url', {url});
+    }
+
+    const handler = this.createHandler(fallbackToNetwork);
+    const request = new Request(url);
+    return () => handler({request});
+  }
+}
+
+export {PrecacheController};

node_modules/workbox-precaching/src/_types.ts

@@ -0,0 +1,78 @@
+/*
+  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.
+*/
+
+import './_version.js';
+
+export interface InstallResult {
+  updatedURLs: string[];
+  notUpdatedURLs: string[];
+}
+
+export interface CleanupResult {
+  deletedCacheRequests: string[];
+}
+
+export interface PrecacheEntry {
+  integrity?: string;
+  url: string;
+  revision?: string;
+}
+
+export type urlManipulation = ({url}: {url: URL}) => URL[];
+
+// * * * IMPORTANT! * * *
+// ------------------------------------------------------------------------- //
+// jdsoc type definitions cannot be declared above TypeScript definitions or
+// they'll be stripped from the built `.js` files, and they'll only be in the
+// `d.ts` files, which aren't read by the jsdoc generator. As a result we
+// have to put declare them below.
+
+/**
+ * @typedef {Object} InstallResult
+ * @property {Array<string>} updatedURLs List of URLs that were updated during
+ * installation.
+ * @property {Array<string>} notUpdatedURLs List of URLs that were already up to
+ * date.
+ *
+ * @memberof module:workbox-precaching
+ */
+
+/**
+ * @typedef {Object} CleanupResult
+ * @property {Array<string>} deletedCacheRequests List of URLs that were deleted
+ * while cleaning up the cache.
+ *
+ * @memberof module:workbox-precaching
+ */
+
+/**
+ * @typedef {Object} PrecacheEntry
+ * @property {string} url URL to precache.
+ * @property {string} [revision] Revision information for the URL.
+ * @property {string} [integrity] Integrity metadata that will be used when
+ * making the network request for the URL.
+ *
+ * @memberof module:workbox-precaching
+ */
+
+/**
+ * The "urlManipulation" callback can be used to determine if there are any
+ * additional permutations of a URL that should be used to check against
+ * the available precached files.
+ *
+ * For example, Workbox supports checking for '/index.html' when the URL
+ * '/' is provided. This callback allows additional, custom checks.
+ *
+ * @callback ~urlManipulation
+ * @param {Object} context
+ * @param {URL} context.url The request's URL.
+ * @return {Array<URL>} To add additional urls to test, return an Array of
+ * URLs. Please note that these **should not be strings**, but URL objects.
+ *
+ * @memberof module:workbox-precaching
+ */

node_modules/workbox-precaching/src/_version.ts

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+// @ts-ignore
+try{self['workbox:precaching:5.1.4']&&_()}catch(e){}

node_modules/workbox-precaching/src/addPlugins.ts

@@ -0,0 +1,25 @@
+/*
+  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.
+*/
+
+import {WorkboxPlugin} from 'workbox-core/types.js';
+import {precachePlugins} from './utils/precachePlugins.js';
+import './_version.js';
+
+
+/**
+ * Adds plugins to precaching.
+ *
+ * @param {Array<Object>} newPlugins
+ *
+ * @memberof module:workbox-precaching
+ */
+function addPlugins(newPlugins: WorkboxPlugin[]) {
+  precachePlugins.add(newPlugins);
+}
+
+export {addPlugins};

node_modules/workbox-precaching/src/addRoute.ts

@@ -0,0 +1,46 @@
+
+/*
+  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.
+*/
+
+import {addFetchListener, FetchListenerOptions} from './utils/addFetchListener.js';
+import './_version.js';
+
+
+let listenerAdded = false;
+
+/**
+ * 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]
+ * @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_/]] 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 {module: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.
+ *
+ * @memberof module:workbox-precaching
+ */
+function addRoute(options?: FetchListenerOptions) {
+  if (!listenerAdded) {
+    addFetchListener(options);
+    listenerAdded = true;
+  }
+}
+
+export {addRoute}

node_modules/workbox-precaching/src/cleanupOutdatedCaches.ts

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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.
+*/
+
+import {cacheNames} from 'workbox-core/_private/cacheNames.js';
+import {logger} from 'workbox-core/_private/logger.js';
+import {deleteOutdatedCaches} from './utils/deleteOutdatedCaches.js';
+import './_version.js';
+
+
+/**
+ * Adds an `activate` event listener which will clean up incompatible
+ * precaches that were created by older versions of Workbox.
+ *
+ * @memberof module:workbox-precaching
+ */
+function cleanupOutdatedCaches() {
+  // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
+  self.addEventListener('activate', ((event: ExtendableEvent) => {
+    const cacheName = cacheNames.getPrecacheName();
+
+    event.waitUntil(deleteOutdatedCaches(cacheName).then((cachesDeleted) => {
+      if (process.env.NODE_ENV !== 'production') {
+        if (cachesDeleted.length > 0) {
+          logger.log(`The following out-of-date precaches were cleaned up ` +
+              `automatically:`, cachesDeleted);
+        }
+      }
+    }));
+  }) as EventListener);
+}
+
+export {cleanupOutdatedCaches}

node_modules/workbox-precaching/src/createHandler.ts

@@ -0,0 +1,33 @@
+/*
+  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.
+*/
+
+import {getOrCreatePrecacheController} from './utils/getOrCreatePrecacheController.js';
+
+import './_version.js';
+
+/**
+ * Helper function that calls
+ * {@link PrecacheController#createHandler} on the default
+ * {@link PrecacheController} instance.
+ *
+ * If you are creating your own {@link PrecacheController}, then call the
+ * {@link PrecacheController#createHandler} on that instance,
+ * instead of using this function.
+ *
+ * @param {boolean} [fallbackToNetwork=true] Whether to attempt to get the
+ * response from the network if there's a precache miss.
+ * @return {module:workbox-routing~handlerCallback}
+ *
+ * @memberof module:workbox-precaching
+ */
+function createHandler(fallbackToNetwork = true) {
+  const precacheController = getOrCreatePrecacheController();
+  return precacheController.createHandler(fallbackToNetwork);
+}
+
+export {createHandler}

node_modules/workbox-precaching/src/createHandlerBoundToURL.ts

@@ -0,0 +1,35 @@
+/*
+  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.
+*/
+
+import {getOrCreatePrecacheController} from './utils/getOrCreatePrecacheController.js';
+
+import './_version.js';
+
+/**
+ * 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 {module:workbox-routing~handlerCallback}
+ *
+ * @memberof module:workbox-precaching
+ */
+function createHandlerBoundToURL(url: string) {
+  const precacheController = getOrCreatePrecacheController();
+  return precacheController.createHandlerBoundToURL(url);
+}
+
+export {createHandlerBoundToURL}

node_modules/workbox-precaching/src/getCacheKeyForURL.ts

@@ -0,0 +1,37 @@
+/*
+  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.
+*/
+
+import {getOrCreatePrecacheController} from './utils/getOrCreatePrecacheController.js';
+import './_version.js';
+
+
+/**
+ * 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 module:workbox-precaching
+ */
+function getCacheKeyForURL(url: string) {
+  const precacheController = getOrCreatePrecacheController();
+  return precacheController.getCacheKeyForURL(url);
+}
+
+export {getCacheKeyForURL}

node_modules/workbox-precaching/src/index.ts

@@ -0,0 +1,46 @@
+/*
+  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.
+*/
+
+import {addPlugins} from './addPlugins.js';
+import {addRoute} from './addRoute.js';
+import {cleanupOutdatedCaches} from './cleanupOutdatedCaches.js';
+import {createHandler} from './createHandler.js';
+import {createHandlerBoundToURL} from './createHandlerBoundToURL.js';
+import {getCacheKeyForURL} from './getCacheKeyForURL.js';
+import {matchPrecache} from './matchPrecache.js';
+import {precache} from './precache.js';
+import {precacheAndRoute} from './precacheAndRoute.js';
+import {PrecacheController} from './PrecacheController.js';
+
+import './_version.js';
+
+/**
+ * Most consumers of this module will want to use the
+ * [precacheAndRoute()]{@link module:workbox-precaching.precacheAndRoute}
+ * method to add assets to the Cache and respond to network requests with these
+ * cached assets.
+ *
+ * If you require finer grained control, you can use the
+ * [PrecacheController]{@link module:workbox-precaching.PrecacheController}
+ * to determine when performed.
+ *
+ * @module workbox-precaching
+ */
+
+export {
+  addPlugins,
+  addRoute,
+  cleanupOutdatedCaches,
+  createHandler,
+  createHandlerBoundToURL,
+  getCacheKeyForURL,
+  matchPrecache,
+  precache,
+  precacheAndRoute,
+  PrecacheController,
+};

node_modules/workbox-precaching/src/matchPrecache.ts

@@ -0,0 +1,33 @@
+/*
+  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.
+*/
+
+import {getOrCreatePrecacheController} from './utils/getOrCreatePrecacheController.js';
+
+import './_version.js';
+
+/**
+ * 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 module:workbox-precaching
+ */
+function matchPrecache(request: string|Request) {
+  const precacheController = getOrCreatePrecacheController();
+  return precacheController.matchPrecache(request);
+}
+
+export {matchPrecache}

node_modules/workbox-precaching/src/precache.ts

@@ -0,0 +1,77 @@
+/*
+  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.
+*/
+
+import {logger} from 'workbox-core/_private/logger.js';
+import {getOrCreatePrecacheController} from './utils/getOrCreatePrecacheController.js';
+import {precachePlugins} from './utils/precachePlugins.js';
+import {PrecacheEntry} from './_types.js';
+import './_version.js';
+
+declare global {
+  interface WorkerGlobalScope {
+    __WB_MANIFEST: Array<PrecacheEntry|string>;
+  }
+}
+
+const installListener = (event: ExtendableEvent) => {
+  const precacheController = getOrCreatePrecacheController();
+  const plugins = precachePlugins.get();
+
+  event.waitUntil(
+      precacheController.install({event, plugins})
+          .catch((error: Error) => {
+            if (process.env.NODE_ENV !== 'production') {
+              logger.error(`Service worker installation failed. It will ` +
+              `be retried automatically during the next navigation.`);
+            }
+            // Re-throw the error to ensure installation fails.
+            throw error;
+          })
+  );
+};
+
+const activateListener = (event: ExtendableEvent) => {
+  const precacheController = getOrCreatePrecacheController();
+
+  event.waitUntil(precacheController.activate());
+};
+
+/**
+ * Adds items to the precache list, removing any duplicates and
+ * stores the files in the
+ * ["precache cache"]{@link module:workbox-core.cacheNames} 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
+ * [addRoute()]{@link module:workbox-precaching.addRoute}.
+ *
+ * If you have a single array of files to precache, you can just call
+ * [precacheAndRoute()]{@link module:workbox-precaching.precacheAndRoute}.
+ *
+ * @param {Array<Object|string>} [entries=[]] Array of entries to precache.
+ *
+ * @memberof module:workbox-precaching
+ */
+function precache(entries: Array<PrecacheEntry|string>) {
+  const precacheController = getOrCreatePrecacheController();
+  precacheController.addToCacheList(entries);
+
+  if (entries.length > 0) {
+    // NOTE: these listeners will only be added once (even if the `precache()`
+    // method is called multiple times) because event listeners are implemented
+    // as a set, where each listener must be unique.
+    // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
+    self.addEventListener('install', installListener as EventListener);
+    self.addEventListener('activate', activateListener as EventListener);
+  }
+}
+
+export {precache}

node_modules/workbox-precaching/src/precacheAndRoute.ts

@@ -0,0 +1,40 @@
+/*
+  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.
+*/
+
+import {FetchListenerOptions} from './utils/addFetchListener.js';
+import {addRoute} from './addRoute.js';
+import {precache} from './precache.js';
+import {PrecacheEntry} from './_types.js';
+import './_version.js';
+
+declare global {
+  interface WorkerGlobalScope {
+    __WB_MANIFEST: Array<PrecacheEntry|string>;
+  }
+}
+
+/**
+ * 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
+ * [precache()]{@link module:workbox-precaching.precache} and
+ * [addRoute()]{@link module:workbox-precaching.addRoute} in a single call.
+ *
+ * @param {Array<Object|string>} entries Array of entries to precache.
+ * @param {Object} [options] See
+ * [addRoute() options]{@link module:workbox-precaching.addRoute}.
+ *
+ * @memberof module:workbox-precaching
+ */
+function precacheAndRoute(entries: Array<PrecacheEntry|string>, options?: FetchListenerOptions) {
+  precache(entries);
+  addRoute(options);
+}
+
+export {precacheAndRoute}

node_modules/workbox-precaching/src/utils/addFetchListener.ts

@@ -0,0 +1,116 @@
+/*
+  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.
+*/
+
+import {cacheNames} from 'workbox-core/_private/cacheNames.js';
+import {getFriendlyURL} from 'workbox-core/_private/getFriendlyURL.js';
+import {logger} from 'workbox-core/_private/logger.js';
+import {getCacheKeyForURL} from './getCacheKeyForURL.js';
+import {urlManipulation} from '../_types.js';
+import '../_version.js';
+
+
+export interface FetchListenerOptions {
+  directoryIndex?: string;
+  ignoreURLParametersMatching?: RegExp[];
+  cleanURLs?: boolean;
+  urlManipulation?: urlManipulation;
+}
+
+/**
+ * Adds 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.
+ *
+ * NOTE: when called more than once this method will replace the previously set
+ * configuration options. Calling it more than once is not recommended outside
+ * of tests.
+ *
+ * @private
+ * @param {Object} [options]
+ * @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_/]] 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.
+ */
+export const addFetchListener = ({
+  ignoreURLParametersMatching = [/^utm_/],
+  directoryIndex = 'index.html',
+  cleanURLs = true,
+  urlManipulation,
+}: FetchListenerOptions = {}) => {
+  const cacheName = cacheNames.getPrecacheName();
+
+  // See https://github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705
+  self.addEventListener('fetch', ((event: FetchEvent) => {
+    const precachedURL = getCacheKeyForURL(event.request.url, {
+      cleanURLs,
+      directoryIndex,
+      ignoreURLParametersMatching,
+      urlManipulation,
+    });
+    if (!precachedURL) {
+      if (process.env.NODE_ENV !== 'production') {
+        logger.debug(`Precaching did not find a match for ` +
+          getFriendlyURL(event.request.url));
+      }
+      return;
+    }
+
+    let responsePromise = self.caches.open(cacheName).then((cache) => {
+      return cache.match(precachedURL);
+    }).then((cachedResponse) => {
+      if (cachedResponse) {
+        return cachedResponse;
+      }
+
+      // Fall back to the network if we don't have a cached response
+      // (perhaps due to manual cache cleanup).
+      if (process.env.NODE_ENV !== 'production') {
+        logger.warn(`The precached response for ` +
+        `${getFriendlyURL(precachedURL)} in ${cacheName} was not found. ` +
+        `Falling back to the network instead.`);
+      }
+
+      return fetch(precachedURL);
+    });
+
+    if (process.env.NODE_ENV !== 'production') {
+      responsePromise = responsePromise.then((response) => {
+        // Workbox is going to handle the route.
+        // print the routing details to the console.
+        logger.groupCollapsed(`Precaching is responding to: ` +
+          getFriendlyURL(event.request.url));
+        logger.log(`Serving the precached url: ${precachedURL}`);
+
+        logger.groupCollapsed(`View request details here.`);
+        logger.log(event.request);
+        logger.groupEnd();
+
+        logger.groupCollapsed(`View response details here.`);
+        logger.log(response);
+        logger.groupEnd();
+
+        logger.groupEnd();
+        return response;
+      });
+    }
+
+    event.respondWith(responsePromise);
+  }) as EventListener);
+};

node_modules/workbox-precaching/src/utils/createCacheKey.ts

@@ -0,0 +1,70 @@
+/*
+  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.
+*/
+
+import {WorkboxError} from 'workbox-core/_private/WorkboxError.js';
+import {PrecacheEntry} from '../_types.js';
+import '../_version.js';
+
+
+interface CacheKey {
+  cacheKey: string;
+  url: string;
+}
+
+// Name of the search parameter used to store revision info.
+const REVISION_SEARCH_PARAM = '__WB_REVISION__';
+
+/**
+ * Converts a manifest entry into a versioned URL suitable for precaching.
+ *
+ * @param {Object|string} entry
+ * @return {string} A URL with versioning info.
+ *
+ * @private
+ * @memberof module:workbox-precaching
+ */
+export function createCacheKey(entry: PrecacheEntry | string): CacheKey  {
+  if (!entry) {
+    throw new WorkboxError('add-to-cache-list-unexpected-type', {entry});
+  }
+
+  // If a precache manifest entry is a string, it's assumed to be a versioned
+  // URL, like '/app.abcd1234.js'. Return as-is.
+  if (typeof entry === 'string') {
+    const urlObject = new URL(entry, location.href);
+    return {
+      cacheKey: urlObject.href,
+      url: urlObject.href,
+    };
+  }
+
+  const {revision, url} = entry;
+  if (!url) {
+    throw new WorkboxError('add-to-cache-list-unexpected-type', {entry});
+  }
+
+  // If there's just a URL and no revision, then it's also assumed to be a
+  // versioned URL.
+  if (!revision) {
+    const urlObject = new URL(url, location.href);
+    return {
+      cacheKey: urlObject.href,
+      url: urlObject.href,
+    };
+  }
+
+  // Otherwise, construct a properly versioned URL using the custom Workbox
+  // search parameter along with the revision info.
+  const cacheKeyURL = new URL(url, location.href);
+  const originalURL = new URL(url, location.href);
+  cacheKeyURL.searchParams.set(REVISION_SEARCH_PARAM, revision);
+  return {
+    cacheKey: cacheKeyURL.href,
+    url: originalURL.href,
+  };
+}

node_modules/workbox-precaching/src/utils/deleteOutdatedCaches.ts

@@ -0,0 +1,53 @@
+/*
+  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.
+*/
+
+import '../_version.js';
+
+
+// Give TypeScript the correct global.
+declare let self: ServiceWorkerGlobalScope;
+
+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 module:workbox-precaching
+ */
+const deleteOutdatedCaches = async (
+    currentPrecacheName: string,
+    substringToFind: string = 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;
+};
+
+export {deleteOutdatedCaches};
+

node_modules/workbox-precaching/src/utils/generateURLVariations.ts

@@ -0,0 +1,56 @@
+/*
+  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.
+*/
+
+import {FetchListenerOptions} from './addFetchListener.js';
+import {removeIgnoredSearchParams} from './removeIgnoredSearchParams.js';
+import '../_version.js';
+
+
+/**
+ * Generator function that yields possible variations on the original URL to
+ * check, one at a time.
+ *
+ * @param {string} url
+ * @param {Object} options
+ *
+ * @private
+ * @memberof module:workbox-precaching
+ */
+export function* generateURLVariations(url: string, {
+  ignoreURLParametersMatching,
+  directoryIndex,
+  cleanURLs,
+  urlManipulation,
+}: FetchListenerOptions = {}) {
+  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;
+    }
+  }
+}

node_modules/workbox-precaching/src/utils/getCacheKeyForURL.ts

@@ -0,0 +1,36 @@
+/*
+  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.
+*/
+
+import {FetchListenerOptions} from './addFetchListener.js';
+import {getOrCreatePrecacheController} from './getOrCreatePrecacheController.js';
+import {generateURLVariations} from './generateURLVariations.js';
+import '../_version.js';
+
+/**
+ * This function will take the request URL and manipulate it based on the
+ * configuration options.
+ *
+ * @param {string} url
+ * @param {Object} options
+ * @return {string} Returns the URL in the cache that matches the request,
+ * if possible.
+ *
+ * @private
+ */
+export const getCacheKeyForURL =
+    (url: string, options: FetchListenerOptions): string | void => {
+  const precacheController = getOrCreatePrecacheController();
+
+  const urlsToCacheKeys = precacheController.getURLsToCacheKeys();
+  for (const possibleURL of generateURLVariations(url, options)) {
+    const possibleCacheKey = urlsToCacheKeys.get(possibleURL);
+    if (possibleCacheKey) {
+      return possibleCacheKey;
+    }
+  }
+};

node_modules/workbox-precaching/src/utils/getOrCreatePrecacheController.ts

@@ -0,0 +1,24 @@
+/*
+  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.
+*/
+
+import {PrecacheController} from '../PrecacheController.js';
+import '../_version.js';
+
+
+let precacheController: PrecacheController | undefined;
+
+/**
+ * @return {PrecacheController}
+ * @private
+ */
+export const getOrCreatePrecacheController = () => {
+  if (!precacheController) {
+    precacheController = new PrecacheController();
+  }
+  return precacheController;
+};

node_modules/workbox-precaching/src/utils/precachePlugins.ts

@@ -0,0 +1,31 @@
+/*
+  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.
+*/
+
+import {WorkboxPlugin} from 'workbox-core/types.js';
+import '../_version.js';
+
+
+const plugins: WorkboxPlugin[] = [];
+
+export const precachePlugins = {
+  /*
+   * @return {Array}
+   * @private
+   */
+  get() {
+    return plugins;
+  },
+
+  /*
+   * @param {Array} newPlugins
+   * @private
+   */
+  add(newPlugins: WorkboxPlugin[]) {
+    plugins.push(...newPlugins);
+  },
+};

node_modules/workbox-precaching/src/utils/printCleanupDetails.ts

@@ -0,0 +1,44 @@
+/*
+  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.
+*/
+
+import {logger} from 'workbox-core/_private/logger.js';
+import '../_version.js';
+
+
+/**
+ * @param {string} groupTitle
+ * @param {Array<string>} deletedURLs
+ *
+ * @private
+ */
+const logGroup = (groupTitle: string, deletedURLs: string[]) => {
+  logger.groupCollapsed(groupTitle);
+
+  for (const url of deletedURLs) {
+    logger.log(url);
+  }
+
+  logger.groupEnd();
+};
+
+/**
+ * @param {Array<string>} deletedURLs
+ *
+ * @private
+ * @memberof module:workbox-precaching
+ */
+export function printCleanupDetails(deletedURLs: string[]) {
+  const deletionCount = deletedURLs.length;
+  if (deletionCount > 0) {
+    logger.groupCollapsed(`During precaching cleanup, ` +
+        `${deletionCount} cached ` +
+        `request${deletionCount === 1 ? ' was' : 's were'} deleted.`);
+    logGroup('Deleted Cache Requests', deletedURLs);
+    logger.groupEnd();
+  }
+}

node_modules/workbox-precaching/src/utils/printInstallDetails.ts

@@ -0,0 +1,59 @@
+/*
+  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.
+*/
+
+import {logger} from 'workbox-core/_private/logger.js';
+import '../_version.js';
+
+
+/**
+ * @param {string} groupTitle
+ * @param {Array<string>} urls
+ *
+ * @private
+ */
+function _nestedGroup(groupTitle: string, urls: string[]) {
+  if (urls.length === 0) {
+    return;
+  }
+
+  logger.groupCollapsed(groupTitle);
+
+  for (const url of urls) {
+    logger.log(url);
+  }
+
+  logger.groupEnd();
+}
+
+/**
+ * @param {Array<string>} urlsToPrecache
+ * @param {Array<string>} urlsAlreadyPrecached
+ *
+ * @private
+ * @memberof module:workbox-precaching
+ */
+export function printInstallDetails(urlsToPrecache: string[], urlsAlreadyPrecached: string[]) {
+  const precachedCount = urlsToPrecache.length;
+  const alreadyPrecachedCount = urlsAlreadyPrecached.length;
+
+  if (precachedCount || alreadyPrecachedCount) {
+    let message =
+        `Precaching ${precachedCount} file${precachedCount === 1 ? '' : 's'}.`;
+
+    if (alreadyPrecachedCount > 0) {
+      message += ` ${alreadyPrecachedCount} ` +
+        `file${alreadyPrecachedCount === 1 ? ' is' : 's are'} already cached.`;
+    }
+
+    logger.groupCollapsed(message);
+
+    _nestedGroup(`View newly precached URLs.`, urlsToPrecache);
+    _nestedGroup(`View previously precached URLs.`, urlsAlreadyPrecached);
+    logger.groupEnd();
+  }
+}

node_modules/workbox-precaching/src/utils/removeIgnoredSearchParams.ts

@@ -0,0 +1,34 @@
+/*
+  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.
+*/
+
+import '../_version.js';
+
+/**
+ * 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 module:workbox-precaching
+ */
+export function removeIgnoredSearchParams(
+    urlObject: URL, ignoreURLParametersMatching: RegExp[] = []): URL {
+  // 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;
+}