0.2.0 - Mid migration

web/node_modules/workbox-strategies/src/CacheFirst.ts

@@ -0,0 +1,185 @@
+/*
+  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 {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 {getFriendlyURL} from 'workbox-core/_private/getFriendlyURL.js';
+import {logger} from 'workbox-core/_private/logger.js';
+import {WorkboxError} from 'workbox-core/_private/WorkboxError.js';
+import {RouteHandlerObject, RouteHandlerCallbackOptions, WorkboxPlugin} from 'workbox-core/types.js';
+import {messages} from './utils/messages.js';
+import './_version.js';
+
+
+interface CacheFirstOptions {
+  cacheName?: string;
+  plugins?: WorkboxPlugin[];
+  fetchOptions?: RequestInit;
+  matchOptions?: CacheQueryOptions;
+}
+
+/**
+ * An implementation of a [cache-first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-falling-back-to-network}
+ * request strategy.
+ *
+ * A cache first strategy is useful for assets that have been revisioned,
+ * such as URLs like `/styles/example.a8f5f1.css`, since they
+ * can be cached for long periods of time.
+ *
+ * If the network request fails, and there is no cache match, this will throw
+ * a `WorkboxError` exception.
+ *
+ * @memberof module:workbox-strategies
+ */
+class CacheFirst implements RouteHandlerObject {
+  private readonly _cacheName: string;
+  private readonly _plugins: WorkboxPlugin[];
+  private readonly _fetchOptions?: RequestInit;
+  private readonly _matchOptions?: CacheQueryOptions;
+
+  /**
+   * @param {Object} options
+   * @param {string} options.cacheName Cache name to store and retrieve
+   * requests. Defaults to cache names provided by
+   * [workbox-core]{@link module:workbox-core.cacheNames}.
+   * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+   * to use in conjunction with this caching strategy.
+   * @param {Object} options.fetchOptions Values passed along to the
+   * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+   * of all fetch() requests made by this strategy.
+   * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+   */
+  constructor(options: CacheFirstOptions = {}) {
+    this._cacheName = cacheNames.getRuntimeName(options.cacheName);
+    this._plugins = options.plugins || [];
+    this._fetchOptions = options.fetchOptions;
+    this._matchOptions = options.matchOptions;
+  }
+
+  /**
+   * This method will perform a request strategy and follows an API that
+   * will work with the
+   * [Workbox Router]{@link module:workbox-routing.Router}.
+   *
+   * @param {Object} options
+   * @param {Request|string} options.request A request to run this strategy for.
+   * @param {Event} [options.event] The event that triggered the request.
+   * @return {Promise<Response>}
+   */
+  async handle({event, request}: RouteHandlerCallbackOptions): Promise<Response> {
+    const logs = [];
+
+    if (typeof request === 'string') {
+      request = new Request(request);
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      assert!.isInstance(request, Request, {
+        moduleName: 'workbox-strategies',
+        className: 'CacheFirst',
+        funcName: 'makeRequest',
+        paramName: 'request',
+      });
+    }
+
+    let response = await cacheWrapper.match({
+      cacheName: this._cacheName,
+      request,
+      event,
+      matchOptions: this._matchOptions,
+      plugins: this._plugins,
+    });
+
+    let error;
+    if (!response) {
+      if (process.env.NODE_ENV !== 'production') {
+        logs.push(
+            `No response found in the '${this._cacheName}' cache. ` +
+          `Will respond with a network request.`);
+      }
+      try {
+        response = await this._getFromNetwork(request, event);
+      } catch (err) {
+        error = err;
+      }
+
+      if (process.env.NODE_ENV !== 'production') {
+        if (response) {
+          logs.push(`Got response from network.`);
+        } else {
+          logs.push(`Unable to get a response from the network.`);
+        }
+      }
+    } else {
+      if (process.env.NODE_ENV !== 'production') {
+        logs.push(
+            `Found a cached response in the '${this._cacheName}' cache.`);
+      }
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      logger.groupCollapsed(
+          messages.strategyStart('CacheFirst', request));
+      for (const log of logs) {
+        logger.log(log);
+      }
+      messages.printFinalResponse(response);
+      logger.groupEnd();
+    }
+
+    if (!response) {
+      throw new WorkboxError('no-response', {url: request.url, error});
+    }
+    return response;
+  }
+
+  /**
+   * Handles the network and cache part of CacheFirst.
+   *
+   * @param {Request} request
+   * @param {Event} [event]
+   * @return {Promise<Response>}
+   *
+   * @private
+   */
+  async _getFromNetwork(request: Request, event?: ExtendableEvent) {
+    const response = await fetchWrapper.fetch({
+      request,
+      event,
+      fetchOptions: this._fetchOptions,
+      plugins: this._plugins,
+    });
+
+    // Keep the service worker while we put the request to the cache
+    const responseClone = response.clone();
+    const cachePutPromise = cacheWrapper.put({
+      cacheName: this._cacheName,
+      request,
+      response: responseClone,
+      event,
+      plugins: this._plugins,
+    });
+
+    if (event) {
+      try {
+        event.waitUntil(cachePutPromise);
+      } catch (error) {
+        if (process.env.NODE_ENV !== 'production') {
+          logger.warn(`Unable to ensure service worker stays alive when ` +
+            `updating cache for '${getFriendlyURL(request.url)}'.`);
+        }
+      }
+    }
+
+    return response;
+  }
+}
+
+export {CacheFirst};

web/node_modules/workbox-strategies/src/CacheOnly.ts

@@ -0,0 +1,109 @@
+/*
+  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 {assert} from 'workbox-core/_private/assert.js';
+import {cacheNames} from 'workbox-core/_private/cacheNames.js';
+import {cacheWrapper} from 'workbox-core/_private/cacheWrapper.js';
+import {logger} from 'workbox-core/_private/logger.js';
+import {WorkboxError} from 'workbox-core/_private/WorkboxError.js';
+import {RouteHandlerObject, RouteHandlerCallbackOptions, WorkboxPlugin} from 'workbox-core/types.js';
+import {messages} from './utils/messages.js';
+import './_version.js';
+
+
+interface CacheOnlyOptions {
+  cacheName?: string;
+  plugins?: WorkboxPlugin[];
+  matchOptions?: CacheQueryOptions;
+}
+
+/**
+ * An implementation of a
+ * [cache-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-only}
+ * request strategy.
+ *
+ * This class is useful if you want to take advantage of any
+ * [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
+ *
+ * If there is no cache match, this will throw a `WorkboxError` exception.
+ *
+ * @memberof module:workbox-strategies
+ */
+class CacheOnly implements RouteHandlerObject {
+  private readonly _cacheName: string;
+  private readonly _plugins: WorkboxPlugin[];
+  private readonly _matchOptions?: CacheQueryOptions;
+
+  /**
+   * @param {Object} options
+   * @param {string} options.cacheName Cache name to store and retrieve
+   * requests. Defaults to cache names provided by
+   * [workbox-core]{@link module:workbox-core.cacheNames}.
+   * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+   * to use in conjunction with this caching strategy.
+   * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+   */
+  constructor(options: CacheOnlyOptions = {}) {
+    this._cacheName = cacheNames.getRuntimeName(options.cacheName);
+    this._plugins = options.plugins || [];
+    this._matchOptions = options.matchOptions;
+  }
+
+  /**
+   * This method will perform a request strategy and follows an API that
+   * will work with the
+   * [Workbox Router]{@link module:workbox-routing.Router}.
+   *
+   * @param {Object} options
+   * @param {Request|string} options.request A request to run this strategy for.
+   * @param {Event} [options.event] The event that triggered the request.
+   * @return {Promise<Response>}
+   */
+  async handle({event, request}: RouteHandlerCallbackOptions): Promise<Response> {
+    if (typeof request === 'string') {
+      request = new Request(request);
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      assert!.isInstance(request, Request, {
+        moduleName: 'workbox-strategies',
+        className: 'CacheOnly',
+        funcName: 'makeRequest',
+        paramName: 'request',
+      });
+    }
+
+    const response = await cacheWrapper.match({
+      cacheName: this._cacheName,
+      request,
+      event,
+      matchOptions: this._matchOptions,
+      plugins: this._plugins,
+    });
+
+    if (process.env.NODE_ENV !== 'production') {
+      logger.groupCollapsed(
+          messages.strategyStart('CacheOnly', request));
+      if (response) {
+        logger.log(`Found a cached response in the '${this._cacheName}'` +
+          ` cache.`);
+        messages.printFinalResponse(response);
+      } else {
+        logger.log(`No response found in the '${this._cacheName}' cache.`);
+      }
+      logger.groupEnd();
+    }
+
+    if (!response) {
+      throw new WorkboxError('no-response', {url: request.url});
+    }
+    return response;
+  }
+}
+
+export {CacheOnly};

web/node_modules/workbox-strategies/src/NetworkFirst.ts

@@ -0,0 +1,306 @@
+/*
+  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 {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 {getFriendlyURL} from 'workbox-core/_private/getFriendlyURL.js';
+import {logger} from 'workbox-core/_private/logger.js';
+import {WorkboxError} from 'workbox-core/_private/WorkboxError.js';
+import {RouteHandlerObject, RouteHandlerCallbackOptions, WorkboxPlugin} from 'workbox-core/types.js';
+import {messages} from './utils/messages.js';
+import {cacheOkAndOpaquePlugin} from './plugins/cacheOkAndOpaquePlugin.js';
+import './_version.js';
+
+
+interface NetworkFirstOptions {
+  cacheName?: string;
+  plugins?: WorkboxPlugin[];
+  fetchOptions?: RequestInit;
+  matchOptions?: CacheQueryOptions;
+  networkTimeoutSeconds?: number;
+}
+
+/**
+ * An implementation of a
+ * [network first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-falling-back-to-cache}
+ * request strategy.
+ *
+ * By default, this strategy will cache responses with a 200 status code as
+ * well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
+ * Opaque responses are are cross-origin requests where the response doesn't
+ * support [CORS]{@link https://enable-cors.org/}.
+ *
+ * If the network request fails, and there is no cache match, this will throw
+ * a `WorkboxError` exception.
+ *
+ * @memberof module:workbox-strategies
+ */
+class NetworkFirst implements RouteHandlerObject {
+  private readonly _cacheName: string;
+  private readonly _plugins: WorkboxPlugin[];
+  private readonly _fetchOptions?: RequestInit;
+  private readonly _matchOptions?: CacheQueryOptions;
+  private readonly _networkTimeoutSeconds: number;
+
+  /**
+   * @param {Object} options
+   * @param {string} options.cacheName Cache name to store and retrieve
+   * requests. Defaults to cache names provided by
+   * [workbox-core]{@link module:workbox-core.cacheNames}.
+   * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+   * to use in conjunction with this caching strategy.
+   * @param {Object} options.fetchOptions Values passed along to the
+   * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+   * of all fetch() requests made by this strategy.
+   * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+   * @param {number} options.networkTimeoutSeconds If set, any network requests
+   * that fail to respond within the timeout will fallback to the cache.
+   *
+   * This option can be used to combat
+   * "[lie-fi]{@link https://developers.google.com/web/fundamentals/performance/poor-connectivity/#lie-fi}"
+   * scenarios.
+   */
+  constructor(options: NetworkFirstOptions = {}) {
+    this._cacheName = cacheNames.getRuntimeName(options.cacheName);
+
+    if (options.plugins) {
+      const isUsingCacheWillUpdate =
+        options.plugins.some((plugin) => !!plugin.cacheWillUpdate);
+      this._plugins = isUsingCacheWillUpdate ?
+        options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
+    } else {
+      // No plugins passed in, use the default plugin.
+      this._plugins = [cacheOkAndOpaquePlugin];
+    }
+
+    this._networkTimeoutSeconds = options.networkTimeoutSeconds || 0;
+    if (process.env.NODE_ENV !== 'production') {
+      if (this._networkTimeoutSeconds) {
+        assert!.isType(this._networkTimeoutSeconds, 'number', {
+          moduleName: 'workbox-strategies',
+          className: 'NetworkFirst',
+          funcName: 'constructor',
+          paramName: 'networkTimeoutSeconds',
+        });
+      }
+    }
+
+    this._fetchOptions = options.fetchOptions;
+    this._matchOptions = options.matchOptions;
+  }
+
+  /**
+   * This method will perform a request strategy and follows an API that
+   * will work with the
+   * [Workbox Router]{@link module:workbox-routing.Router}.
+   *
+   * @param {Object} options
+   * @param {Request|string} options.request A request to run this strategy for.
+   * @param {Event} [options.event] The event that triggered the request.
+   * @return {Promise<Response>}
+   */
+  async handle({event, request}: RouteHandlerCallbackOptions): Promise<Response> {
+    const logs: any[] = [];
+   
+    if (typeof request === 'string') {
+      request = new Request(request);
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      assert!.isInstance(request, Request, {
+        moduleName: 'workbox-strategies',
+        className: 'NetworkFirst',
+        funcName: 'handle',
+        paramName: 'makeRequest',
+      });
+    }
+
+    const promises = [];
+    let timeoutId: number | undefined;
+
+    if (this._networkTimeoutSeconds) {
+      const {id, promise} = this._getTimeoutPromise({request, event, logs});
+      timeoutId = id;
+      promises.push(promise);
+    }
+
+    const networkPromise =
+        this._getNetworkPromise({timeoutId, request, event, logs});
+    promises.push(networkPromise);
+
+    // Promise.race() will resolve as soon as the first promise resolves.
+    let response = await Promise.race(promises);
+    // If Promise.race() resolved with null, it might be due to a network
+    // timeout + a cache miss. If that were to happen, we'd rather wait until
+    // the networkPromise resolves instead of returning null.
+    // Note that it's fine to await an already-resolved promise, so we don't
+    // have to check to see if it's still "in flight".
+    if (!response) {
+      response = await networkPromise;
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      logger.groupCollapsed(
+          messages.strategyStart('NetworkFirst', request));
+      for (const log of logs) {
+        logger.log(log);
+      }
+      messages.printFinalResponse(response);
+      logger.groupEnd();
+    }
+
+    if (!response) {
+      throw new WorkboxError('no-response', {url: request.url});
+    }
+    return response;
+  }
+
+  /**
+   * @param {Object} options
+   * @param {Request} options.request
+   * @param {Array} options.logs A reference to the logs array
+   * @param {Event} [options.event]
+   * @return {Promise<Response>}
+   *
+   * @private
+   */
+  private _getTimeoutPromise({request, logs, event}: {
+    request: Request;
+    logs: any[];
+    event?: ExtendableEvent;
+  }): {promise: Promise<Response | undefined>; id?: number} {
+    let timeoutId;
+    const timeoutPromise: Promise<Response | undefined> = new Promise((resolve) => {
+      const onNetworkTimeout = async () => {
+        if (process.env.NODE_ENV !== 'production') {
+          logs.push(`Timing out the network response at ` +
+            `${this._networkTimeoutSeconds} seconds.`);
+        }
+
+        resolve(await this._respondFromCache({request, event}));
+      };
+
+      timeoutId = setTimeout(
+          onNetworkTimeout,
+          this._networkTimeoutSeconds * 1000,
+      );
+    });
+
+    return {
+      promise: timeoutPromise,
+      id: timeoutId,
+    };
+  }
+
+  /**
+   * @param {Object} options
+   * @param {number|undefined} options.timeoutId
+   * @param {Request} options.request
+   * @param {Array} options.logs A reference to the logs Array.
+   * @param {Event} [options.event]
+   * @return {Promise<Response>}
+   *
+   * @private
+   */
+  async _getNetworkPromise({timeoutId, request, logs, event}: {
+    request: Request;
+    logs: any[];
+    timeoutId?: number;
+    event?: ExtendableEvent;
+  }): Promise<Response> {
+    let error;
+    let response;
+    try {
+      response = await fetchWrapper.fetch({
+        request,
+        event,
+        fetchOptions: this._fetchOptions,
+        plugins: this._plugins,
+      });
+    } catch (err) {
+      error = err;
+    }
+
+    if (timeoutId) {
+      clearTimeout(timeoutId);
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      if (response) {
+        logs.push(`Got response from network.`);
+      } else {
+        logs.push(`Unable to get a response from the network. Will respond ` +
+          `with a cached response.`);
+      }
+    }
+
+    if (error || !response) {
+      response = await this._respondFromCache({request, event});
+      if (process.env.NODE_ENV !== 'production') {
+        if (response) {
+          logs.push(`Found a cached response in the '${this._cacheName}'` +
+            ` cache.`);
+        } else {
+          logs.push(`No response found in the '${this._cacheName}' cache.`);
+        }
+      }
+    } else {
+      // Keep the service worker alive while we put the request in the cache
+      const responseClone = response.clone();
+      const cachePut = cacheWrapper.put({
+        cacheName: this._cacheName,
+        request,
+        response: responseClone,
+        event,
+        plugins: this._plugins,
+      });
+
+      if (event) {
+        try {
+          // The event has been responded to so we can keep the SW alive to
+          // respond to the request
+          event.waitUntil(cachePut);
+        } catch (err) {
+          if (process.env.NODE_ENV !== 'production') {
+            logger.warn(`Unable to ensure service worker stays alive when ` +
+              `updating cache for '${getFriendlyURL(request.url)}'.`);
+          }
+        }
+      }
+    }
+
+    return response;
+  }
+
+  /**
+   * Used if the network timeouts or fails to make the request.
+   *
+   * @param {Object} options
+   * @param {Request} request The request to match in the cache
+   * @param {Event} [options.event]
+   * @return {Promise<Object>}
+   *
+   * @private
+   */
+  private _respondFromCache({event, request}: {
+    request: Request;
+    event?: ExtendableEvent;
+  }): Promise<Response | undefined> {
+    return cacheWrapper.match({
+      cacheName: this._cacheName,
+      request,
+      event,
+      matchOptions: this._matchOptions,
+      plugins: this._plugins,
+    });
+  }
+}
+
+export {NetworkFirst};

web/node_modules/workbox-strategies/src/NetworkOnly.ts

@@ -0,0 +1,111 @@
+/*
+  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 {assert} from 'workbox-core/_private/assert.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 {RouteHandlerObject, RouteHandlerCallbackOptions, WorkboxPlugin} from 'workbox-core/types.js';
+import {messages} from './utils/messages.js';
+import './_version.js';
+
+
+interface NetworkFirstOptions {
+  plugins?: WorkboxPlugin[];
+  fetchOptions?: RequestInit;
+}
+
+/**
+ * An implementation of a
+ * [network-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-only}
+ * request strategy.
+ *
+ * This class is useful if you want to take advantage of any
+ * [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
+ *
+ * If the network request fails, this will throw a `WorkboxError` exception.
+ *
+ * @memberof module:workbox-strategies
+ */
+class NetworkOnly implements RouteHandlerObject {
+  private readonly _plugins: WorkboxPlugin[];
+  private readonly _fetchOptions?: RequestInit;
+
+  /**
+   * @param {Object} options
+   * @param {string} options.cacheName Cache name to store and retrieve
+   * requests. Defaults to cache names provided by
+   * [workbox-core]{@link module:workbox-core.cacheNames}.
+   * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+   * to use in conjunction with this caching strategy.
+   * @param {Object} options.fetchOptions Values passed along to the
+   * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+   * of all fetch() requests made by this strategy.
+   */
+  constructor(options: NetworkFirstOptions = {}) {
+    this._plugins = options.plugins || [];
+    this._fetchOptions = options.fetchOptions;
+  }
+
+  /**
+   * This method will perform a request strategy and follows an API that
+   * will work with the
+   * [Workbox Router]{@link module:workbox-routing.Router}.
+   *
+   * @param {Object} options
+   * @param {Request|string} options.request The request to run this strategy for.
+   * @param {Event} [options.event] The event that triggered the request.
+   * @return {Promise<Response>}
+   */
+  async handle({event, request}: RouteHandlerCallbackOptions): Promise<Response> {
+    if (typeof request === 'string') {
+      request = new Request(request);
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      assert!.isInstance(request, Request, {
+        moduleName: 'workbox-strategies',
+        className: 'NetworkOnly',
+        funcName: 'handle',
+        paramName: 'request',
+      });
+    }
+
+    let error;
+    let response;
+    try {
+      response = await fetchWrapper.fetch({
+        request,
+        event,
+        fetchOptions: this._fetchOptions,
+        plugins: this._plugins,
+      });
+    } catch (err) {
+      error = err;
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      logger.groupCollapsed(
+          messages.strategyStart('NetworkOnly', request));
+      if (response) {
+        logger.log(`Got response from network.`);
+      } else {
+        logger.log(`Unable to get a response from the network.`);
+      }
+      messages.printFinalResponse(response);
+      logger.groupEnd();
+    }
+
+    if (!response) {
+      throw new WorkboxError('no-response', {url: request.url, error});
+    }
+    return response;
+  }
+}
+
+export {NetworkOnly};

web/node_modules/workbox-strategies/src/StaleWhileRevalidate.ts

@@ -0,0 +1,207 @@
+/*
+  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 {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 {getFriendlyURL} from 'workbox-core/_private/getFriendlyURL.js';
+import {logger} from 'workbox-core/_private/logger.js';
+import {WorkboxError} from 'workbox-core/_private/WorkboxError.js';
+import {RouteHandlerObject, RouteHandlerCallbackOptions, WorkboxPlugin} from 'workbox-core/types.js';
+import {messages} from './utils/messages.js';
+import {cacheOkAndOpaquePlugin} from './plugins/cacheOkAndOpaquePlugin.js';
+import './_version.js';
+
+
+interface StaleWhileRevalidateOptions {
+  cacheName?: string;
+  plugins?: WorkboxPlugin[];
+  fetchOptions?: RequestInit;
+  matchOptions?: CacheQueryOptions;
+}
+
+/**
+ * An implementation of a
+ * [stale-while-revalidate]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#stale-while-revalidate}
+ * request strategy.
+ *
+ * Resources are requested from both the cache and the network in parallel.
+ * The strategy will respond with the cached version if available, otherwise
+ * wait for the network response. The cache is updated with the network response
+ * with each successful request.
+ *
+ * By default, this strategy will cache responses with a 200 status code as
+ * well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
+ * Opaque responses are cross-origin requests where the response doesn't
+ * support [CORS]{@link https://enable-cors.org/}.
+ *
+ * If the network request fails, and there is no cache match, this will throw
+ * a `WorkboxError` exception.
+ *
+ * @memberof module:workbox-strategies
+ */
+class StaleWhileRevalidate implements RouteHandlerObject {
+  private readonly _cacheName: string;
+  private readonly _plugins: WorkboxPlugin[];
+  private readonly _fetchOptions?: RequestInit;
+  private readonly _matchOptions?: CacheQueryOptions;
+
+  /**
+   * @param {Object} options
+   * @param {string} options.cacheName Cache name to store and retrieve
+   * requests. Defaults to cache names provided by
+   * [workbox-core]{@link module:workbox-core.cacheNames}.
+   * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
+   * to use in conjunction with this caching strategy.
+   * @param {Object} options.fetchOptions Values passed along to the
+   * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
+   * of all fetch() requests made by this strategy.
+   * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
+   */
+  constructor(options: StaleWhileRevalidateOptions = {}) {
+    this._cacheName = cacheNames.getRuntimeName(options.cacheName);
+    this._plugins = options.plugins || [];
+
+    if (options.plugins) {
+      const isUsingCacheWillUpdate =
+        options.plugins.some((plugin) => !!plugin.cacheWillUpdate);
+      this._plugins = isUsingCacheWillUpdate ?
+        options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
+    } else {
+      // No plugins passed in, use the default plugin.
+      this._plugins = [cacheOkAndOpaquePlugin];
+    }
+
+    this._fetchOptions = options.fetchOptions;
+    this._matchOptions = options.matchOptions;
+  }
+
+  /**
+   * This method will perform a request strategy and follows an API that
+   * will work with the
+   * [Workbox Router]{@link module:workbox-routing.Router}.
+   *
+   * @param {Object} options
+   * @param {Request|string} options.request A request to run this strategy for.
+   * @param {Event} [options.event] The event that triggered the request.
+   * @return {Promise<Response>}
+   */
+  async handle({event, request}: RouteHandlerCallbackOptions): Promise<Response> {
+    const logs = [];
+
+    if (typeof request === 'string') {
+      request = new Request(request);
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      assert!.isInstance(request, Request, {
+        moduleName: 'workbox-strategies',
+        className: 'StaleWhileRevalidate',
+        funcName: 'handle',
+        paramName: 'request',
+      });
+    }
+
+    const fetchAndCachePromise = this._getFromNetwork({request, event});
+
+    let response = await cacheWrapper.match({
+      cacheName: this._cacheName,
+      request,
+      event,
+      matchOptions: this._matchOptions,
+      plugins: this._plugins,
+    });
+    let error;
+    if (response) {
+      if (process.env.NODE_ENV !== 'production') {
+        logs.push(`Found a cached response in the '${this._cacheName}'` +
+          ` cache. Will update with the network response in the background.`);
+      }
+
+      if (event) {
+        try {
+          event.waitUntil(fetchAndCachePromise);
+        } catch (error) {
+          if (process.env.NODE_ENV !== 'production') {
+            logger.warn(`Unable to ensure service worker stays alive when ` +
+              `updating cache for '${getFriendlyURL(request.url)}'.`);
+          }
+        }
+      }
+    } else {
+      if (process.env.NODE_ENV !== 'production') {
+        logs.push(`No response found in the '${this._cacheName}' cache. ` +
+          `Will wait for the network response.`);
+      }
+      try {
+        response = await fetchAndCachePromise;
+      } catch (err) {
+        error = err;
+      }
+    }
+
+    if (process.env.NODE_ENV !== 'production') {
+      logger.groupCollapsed(
+          messages.strategyStart('StaleWhileRevalidate', request));
+      for (const log of logs) {
+        logger.log(log);
+      }
+      messages.printFinalResponse(response);
+      logger.groupEnd();
+    }
+
+    if (!response) {
+      throw new WorkboxError('no-response', {url: request.url, error});
+    }
+    return response;
+  }
+
+  /**
+   * @param {Object} options
+   * @param {Request} options.request
+   * @param {Event} [options.event]
+   * @return {Promise<Response>}
+   *
+   * @private
+   */
+  async _getFromNetwork({request, event}: {
+    request: Request;
+    event?: ExtendableEvent;
+  }): Promise<Response> {
+    const response = await fetchWrapper.fetch({
+      request,
+      event,
+      fetchOptions: this._fetchOptions,
+      plugins: this._plugins,
+    });
+
+    const cachePutPromise = cacheWrapper.put({
+      cacheName: this._cacheName,
+      request,
+      response: response.clone(),
+      event,
+      plugins: this._plugins,
+    });
+
+    if (event) {
+      try {
+        event.waitUntil(cachePutPromise);
+      } catch (error) {
+        if (process.env.NODE_ENV !== 'production') {
+          logger.warn(`Unable to ensure service worker stays alive when ` +
+            `updating cache for '${getFriendlyURL(request.url)}'.`);
+        }
+      }
+    }
+
+    return response;
+  }
+}
+
+export {StaleWhileRevalidate};

web/node_modules/workbox-strategies/src/_version.ts

@@ -0,0 +1,2 @@
+// @ts-ignore
+try{self['workbox:strategies:5.1.4']&&_()}catch(e){}

web/node_modules/workbox-strategies/src/index.ts

@@ -0,0 +1,31 @@
+/*
+  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 {CacheFirst} from './CacheFirst.js';
+import {CacheOnly} from './CacheOnly.js';
+import {NetworkFirst} from './NetworkFirst.js';
+import {NetworkOnly} from './NetworkOnly.js';
+import {StaleWhileRevalidate} from './StaleWhileRevalidate.js';
+import './_version.js';
+
+
+/**
+ * There are common caching strategies that most service workers will need
+ * and use. This module provides simple implementations of these strategies.
+ *
+ * @module workbox-strategies
+ */
+
+export {
+  CacheFirst,
+  CacheOnly,
+  NetworkFirst,
+  NetworkOnly,
+  StaleWhileRevalidate,
+};
+

web/node_modules/workbox-strategies/src/plugins/cacheOkAndOpaquePlugin.ts

@@ -0,0 +1,30 @@
+/*
+  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 {WorkboxPlugin} from 'workbox-core/types.js';
+import '../_version.js';
+
+
+export const cacheOkAndOpaquePlugin: WorkboxPlugin = {
+  /**
+   * Returns a valid response (to allow caching) if the status is 200 (OK) or
+   * 0 (opaque).
+   *
+   * @param {Object} options
+   * @param {Response} options.response
+   * @return {Response|null}
+   *
+   * @private
+   */
+  cacheWillUpdate: async ({response}) => {
+    if (response.status === 200 || response.status === 0) {
+      return response;
+    }
+    return null;
+  },
+};

web/node_modules/workbox-strategies/src/utils/messages.ts

@@ -0,0 +1,24 @@
+/*
+  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 {getFriendlyURL} from 'workbox-core/_private/getFriendlyURL.js';
+import '../_version.js';
+
+
+export const messages = {
+  strategyStart: (strategyName: string, request: Request) =>
+    `Using ${strategyName} to respond to '${getFriendlyURL(request.url)}'`,
+  printFinalResponse: (response?: Response) => {
+    if (response) {
+      logger.groupCollapsed(`View the final response here.`);
+      logger.log(response || '[No response returned]');
+      logger.groupEnd();
+    }
+  },
+};