workbox-cdn/workbox/workbox-strategies.dev.js

this.workbox = this.workbox || {};
this.workbox.strategies = (function (exports, assert_js, cacheNames_js, cacheWrapper_js, fetchWrapper_js, getFriendlyURL_js, logger_js, WorkboxError_js) {
    'use strict';

    try {
      self['workbox:strategies:5.1.4'] && _();
    } catch (e) {}

    /*
      Copyright 2018 Google LLC

      Use of this source code is governed by an MIT-style
      license that can be found in the LICENSE file or at
      https://opensource.org/licenses/MIT.
    */
    const messages = {
      strategyStart: (strategyName, request) => `Using ${strategyName} to respond to '${getFriendlyURL_js.getFriendlyURL(request.url)}'`,
      printFinalResponse: response => {
        if (response) {
          logger_js.logger.groupCollapsed(`View the final response here.`);
          logger_js.logger.log(response || '[No response returned]');
          logger_js.logger.groupEnd();
        }
      }
    };

    /*
      Copyright 2018 Google LLC

      Use of this source code is governed by an MIT-style
      license that can be found in the LICENSE file or at
      https://opensource.org/licenses/MIT.
    */
    /**
     * An implementation of a [cache-first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-falling-back-to-network}
     * request strategy.
     *
     * A cache first strategy is useful for assets that have been revisioned,
     * such as URLs like `/styles/example.a8f5f1.css`, since they
     * can be cached for long periods of time.
     *
     * If the network request fails, and there is no cache match, this will throw
     * a `WorkboxError` exception.
     *
     * @memberof module:workbox-strategies
     */

    class CacheFirst {
      /**
       * @param {Object} options
       * @param {string} options.cacheName Cache name to store and retrieve
       * requests. Defaults to cache names provided by
       * [workbox-core]{@link module:workbox-core.cacheNames}.
       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
       * to use in conjunction with this caching strategy.
       * @param {Object} options.fetchOptions Values passed along to the
       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
       * of all fetch() requests made by this strategy.
       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
       */
      constructor(options = {}) {
        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
        this._plugins = options.plugins || [];
        this._fetchOptions = options.fetchOptions;
        this._matchOptions = options.matchOptions;
      }
      /**
       * This method will perform a request strategy and follows an API that
       * will work with the
       * [Workbox Router]{@link module:workbox-routing.Router}.
       *
       * @param {Object} options
       * @param {Request|string} options.request A request to run this strategy for.
       * @param {Event} [options.event] The event that triggered the request.
       * @return {Promise<Response>}
       */


      async handle({
        event,
        request
      }) {
        const logs = [];

        if (typeof request === 'string') {
          request = new Request(request);
        }

        {
          assert_js.assert.isInstance(request, Request, {
            moduleName: 'workbox-strategies',
            className: 'CacheFirst',
            funcName: 'makeRequest',
            paramName: 'request'
          });
        }

        let response = await cacheWrapper_js.cacheWrapper.match({
          cacheName: this._cacheName,
          request,
          event,
          matchOptions: this._matchOptions,
          plugins: this._plugins
        });
        let error;

        if (!response) {
          {
            logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will respond with a network request.`);
          }

          try {
            response = await this._getFromNetwork(request, event);
          } catch (err) {
            error = err;
          }

          {
            if (response) {
              logs.push(`Got response from network.`);
            } else {
              logs.push(`Unable to get a response from the network.`);
            }
          }
        } else {
          {
            logs.push(`Found a cached response in the '${this._cacheName}' cache.`);
          }
        }

        {
          logger_js.logger.groupCollapsed(messages.strategyStart('CacheFirst', request));

          for (const log of logs) {
            logger_js.logger.log(log);
          }

          messages.printFinalResponse(response);
          logger_js.logger.groupEnd();
        }

        if (!response) {
          throw new WorkboxError_js.WorkboxError('no-response', {
            url: request.url,
            error
          });
        }

        return response;
      }
      /**
       * Handles the network and cache part of CacheFirst.
       *
       * @param {Request} request
       * @param {Event} [event]
       * @return {Promise<Response>}
       *
       * @private
       */


      async _getFromNetwork(request, event) {
        const response = await fetchWrapper_js.fetchWrapper.fetch({
          request,
          event,
          fetchOptions: this._fetchOptions,
          plugins: this._plugins
        }); // Keep the service worker while we put the request to the cache

        const responseClone = response.clone();
        const cachePutPromise = cacheWrapper_js.cacheWrapper.put({
          cacheName: this._cacheName,
          request,
          response: responseClone,
          event,
          plugins: this._plugins
        });

        if (event) {
          try {
            event.waitUntil(cachePutPromise);
          } catch (error) {
            {
              logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
            }
          }
        }

        return response;
      }

    }

    /*
      Copyright 2018 Google LLC

      Use of this source code is governed by an MIT-style
      license that can be found in the LICENSE file or at
      https://opensource.org/licenses/MIT.
    */
    /**
     * An implementation of a
     * [cache-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#cache-only}
     * request strategy.
     *
     * This class is useful if you want to take advantage of any
     * [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
     *
     * If there is no cache match, this will throw a `WorkboxError` exception.
     *
     * @memberof module:workbox-strategies
     */

    class CacheOnly {
      /**
       * @param {Object} options
       * @param {string} options.cacheName Cache name to store and retrieve
       * requests. Defaults to cache names provided by
       * [workbox-core]{@link module:workbox-core.cacheNames}.
       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
       * to use in conjunction with this caching strategy.
       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
       */
      constructor(options = {}) {
        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
        this._plugins = options.plugins || [];
        this._matchOptions = options.matchOptions;
      }
      /**
       * This method will perform a request strategy and follows an API that
       * will work with the
       * [Workbox Router]{@link module:workbox-routing.Router}.
       *
       * @param {Object} options
       * @param {Request|string} options.request A request to run this strategy for.
       * @param {Event} [options.event] The event that triggered the request.
       * @return {Promise<Response>}
       */


      async handle({
        event,
        request
      }) {
        if (typeof request === 'string') {
          request = new Request(request);
        }

        {
          assert_js.assert.isInstance(request, Request, {
            moduleName: 'workbox-strategies',
            className: 'CacheOnly',
            funcName: 'makeRequest',
            paramName: 'request'
          });
        }

        const response = await cacheWrapper_js.cacheWrapper.match({
          cacheName: this._cacheName,
          request,
          event,
          matchOptions: this._matchOptions,
          plugins: this._plugins
        });

        {
          logger_js.logger.groupCollapsed(messages.strategyStart('CacheOnly', request));

          if (response) {
            logger_js.logger.log(`Found a cached response in the '${this._cacheName}'` + ` cache.`);
            messages.printFinalResponse(response);
          } else {
            logger_js.logger.log(`No response found in the '${this._cacheName}' cache.`);
          }

          logger_js.logger.groupEnd();
        }

        if (!response) {
          throw new WorkboxError_js.WorkboxError('no-response', {
            url: request.url
          });
        }

        return response;
      }

    }

    /*
      Copyright 2018 Google LLC

      Use of this source code is governed by an MIT-style
      license that can be found in the LICENSE file or at
      https://opensource.org/licenses/MIT.
    */
    const cacheOkAndOpaquePlugin = {
      /**
       * Returns a valid response (to allow caching) if the status is 200 (OK) or
       * 0 (opaque).
       *
       * @param {Object} options
       * @param {Response} options.response
       * @return {Response|null}
       *
       * @private
       */
      cacheWillUpdate: async ({
        response
      }) => {
        if (response.status === 200 || response.status === 0) {
          return response;
        }

        return null;
      }
    };

    /*
      Copyright 2018 Google LLC

      Use of this source code is governed by an MIT-style
      license that can be found in the LICENSE file or at
      https://opensource.org/licenses/MIT.
    */
    /**
     * An implementation of a
     * [network first]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-falling-back-to-cache}
     * request strategy.
     *
     * By default, this strategy will cache responses with a 200 status code as
     * well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
     * Opaque responses are are cross-origin requests where the response doesn't
     * support [CORS]{@link https://enable-cors.org/}.
     *
     * If the network request fails, and there is no cache match, this will throw
     * a `WorkboxError` exception.
     *
     * @memberof module:workbox-strategies
     */

    class NetworkFirst {
      /**
       * @param {Object} options
       * @param {string} options.cacheName Cache name to store and retrieve
       * requests. Defaults to cache names provided by
       * [workbox-core]{@link module:workbox-core.cacheNames}.
       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
       * to use in conjunction with this caching strategy.
       * @param {Object} options.fetchOptions Values passed along to the
       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
       * of all fetch() requests made by this strategy.
       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
       * @param {number} options.networkTimeoutSeconds If set, any network requests
       * that fail to respond within the timeout will fallback to the cache.
       *
       * This option can be used to combat
       * "[lie-fi]{@link https://developers.google.com/web/fundamentals/performance/poor-connectivity/#lie-fi}"
       * scenarios.
       */
      constructor(options = {}) {
        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);

        if (options.plugins) {
          const isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
          this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
        } else {
          // No plugins passed in, use the default plugin.
          this._plugins = [cacheOkAndOpaquePlugin];
        }

        this._networkTimeoutSeconds = options.networkTimeoutSeconds || 0;

        {
          if (this._networkTimeoutSeconds) {
            assert_js.assert.isType(this._networkTimeoutSeconds, 'number', {
              moduleName: 'workbox-strategies',
              className: 'NetworkFirst',
              funcName: 'constructor',
              paramName: 'networkTimeoutSeconds'
            });
          }
        }

        this._fetchOptions = options.fetchOptions;
        this._matchOptions = options.matchOptions;
      }
      /**
       * This method will perform a request strategy and follows an API that
       * will work with the
       * [Workbox Router]{@link module:workbox-routing.Router}.
       *
       * @param {Object} options
       * @param {Request|string} options.request A request to run this strategy for.
       * @param {Event} [options.event] The event that triggered the request.
       * @return {Promise<Response>}
       */


      async handle({
        event,
        request
      }) {
        const logs = [];

        if (typeof request === 'string') {
          request = new Request(request);
        }

        {
          assert_js.assert.isInstance(request, Request, {
            moduleName: 'workbox-strategies',
            className: 'NetworkFirst',
            funcName: 'handle',
            paramName: 'makeRequest'
          });
        }

        const promises = [];
        let timeoutId;

        if (this._networkTimeoutSeconds) {
          const {
            id,
            promise
          } = this._getTimeoutPromise({
            request,
            event,
            logs
          });

          timeoutId = id;
          promises.push(promise);
        }

        const networkPromise = this._getNetworkPromise({
          timeoutId,
          request,
          event,
          logs
        });

        promises.push(networkPromise); // Promise.race() will resolve as soon as the first promise resolves.

        let response = await Promise.race(promises); // If Promise.race() resolved with null, it might be due to a network
        // timeout + a cache miss. If that were to happen, we'd rather wait until
        // the networkPromise resolves instead of returning null.
        // Note that it's fine to await an already-resolved promise, so we don't
        // have to check to see if it's still "in flight".

        if (!response) {
          response = await networkPromise;
        }

        {
          logger_js.logger.groupCollapsed(messages.strategyStart('NetworkFirst', request));

          for (const log of logs) {
            logger_js.logger.log(log);
          }

          messages.printFinalResponse(response);
          logger_js.logger.groupEnd();
        }

        if (!response) {
          throw new WorkboxError_js.WorkboxError('no-response', {
            url: request.url
          });
        }

        return response;
      }
      /**
       * @param {Object} options
       * @param {Request} options.request
       * @param {Array} options.logs A reference to the logs array
       * @param {Event} [options.event]
       * @return {Promise<Response>}
       *
       * @private
       */


      _getTimeoutPromise({
        request,
        logs,
        event
      }) {
        let timeoutId;
        const timeoutPromise = new Promise(resolve => {
          const onNetworkTimeout = async () => {
            {
              logs.push(`Timing out the network response at ` + `${this._networkTimeoutSeconds} seconds.`);
            }

            resolve(await this._respondFromCache({
              request,
              event
            }));
          };

          timeoutId = setTimeout(onNetworkTimeout, this._networkTimeoutSeconds * 1000);
        });
        return {
          promise: timeoutPromise,
          id: timeoutId
        };
      }
      /**
       * @param {Object} options
       * @param {number|undefined} options.timeoutId
       * @param {Request} options.request
       * @param {Array} options.logs A reference to the logs Array.
       * @param {Event} [options.event]
       * @return {Promise<Response>}
       *
       * @private
       */


      async _getNetworkPromise({
        timeoutId,
        request,
        logs,
        event
      }) {
        let error;
        let response;

        try {
          response = await fetchWrapper_js.fetchWrapper.fetch({
            request,
            event,
            fetchOptions: this._fetchOptions,
            plugins: this._plugins
          });
        } catch (err) {
          error = err;
        }

        if (timeoutId) {
          clearTimeout(timeoutId);
        }

        {
          if (response) {
            logs.push(`Got response from network.`);
          } else {
            logs.push(`Unable to get a response from the network. Will respond ` + `with a cached response.`);
          }
        }

        if (error || !response) {
          response = await this._respondFromCache({
            request,
            event
          });

          {
            if (response) {
              logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache.`);
            } else {
              logs.push(`No response found in the '${this._cacheName}' cache.`);
            }
          }
        } else {
          // Keep the service worker alive while we put the request in the cache
          const responseClone = response.clone();
          const cachePut = cacheWrapper_js.cacheWrapper.put({
            cacheName: this._cacheName,
            request,
            response: responseClone,
            event,
            plugins: this._plugins
          });

          if (event) {
            try {
              // The event has been responded to so we can keep the SW alive to
              // respond to the request
              event.waitUntil(cachePut);
            } catch (err) {
              {
                logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
              }
            }
          }
        }

        return response;
      }
      /**
       * Used if the network timeouts or fails to make the request.
       *
       * @param {Object} options
       * @param {Request} request The request to match in the cache
       * @param {Event} [options.event]
       * @return {Promise<Object>}
       *
       * @private
       */


      _respondFromCache({
        event,
        request
      }) {
        return cacheWrapper_js.cacheWrapper.match({
          cacheName: this._cacheName,
          request,
          event,
          matchOptions: this._matchOptions,
          plugins: this._plugins
        });
      }

    }

    /*
      Copyright 2018 Google LLC

      Use of this source code is governed by an MIT-style
      license that can be found in the LICENSE file or at
      https://opensource.org/licenses/MIT.
    */
    /**
     * An implementation of a
     * [network-only]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#network-only}
     * request strategy.
     *
     * This class is useful if you want to take advantage of any
     * [Workbox plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}.
     *
     * If the network request fails, this will throw a `WorkboxError` exception.
     *
     * @memberof module:workbox-strategies
     */

    class NetworkOnly {
      /**
       * @param {Object} options
       * @param {string} options.cacheName Cache name to store and retrieve
       * requests. Defaults to cache names provided by
       * [workbox-core]{@link module:workbox-core.cacheNames}.
       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
       * to use in conjunction with this caching strategy.
       * @param {Object} options.fetchOptions Values passed along to the
       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
       * of all fetch() requests made by this strategy.
       */
      constructor(options = {}) {
        this._plugins = options.plugins || [];
        this._fetchOptions = options.fetchOptions;
      }
      /**
       * This method will perform a request strategy and follows an API that
       * will work with the
       * [Workbox Router]{@link module:workbox-routing.Router}.
       *
       * @param {Object} options
       * @param {Request|string} options.request The request to run this strategy for.
       * @param {Event} [options.event] The event that triggered the request.
       * @return {Promise<Response>}
       */


      async handle({
        event,
        request
      }) {
        if (typeof request === 'string') {
          request = new Request(request);
        }

        {
          assert_js.assert.isInstance(request, Request, {
            moduleName: 'workbox-strategies',
            className: 'NetworkOnly',
            funcName: 'handle',
            paramName: 'request'
          });
        }

        let error;
        let response;

        try {
          response = await fetchWrapper_js.fetchWrapper.fetch({
            request,
            event,
            fetchOptions: this._fetchOptions,
            plugins: this._plugins
          });
        } catch (err) {
          error = err;
        }

        {
          logger_js.logger.groupCollapsed(messages.strategyStart('NetworkOnly', request));

          if (response) {
            logger_js.logger.log(`Got response from network.`);
          } else {
            logger_js.logger.log(`Unable to get a response from the network.`);
          }

          messages.printFinalResponse(response);
          logger_js.logger.groupEnd();
        }

        if (!response) {
          throw new WorkboxError_js.WorkboxError('no-response', {
            url: request.url,
            error
          });
        }

        return response;
      }

    }

    /*
      Copyright 2018 Google LLC

      Use of this source code is governed by an MIT-style
      license that can be found in the LICENSE file or at
      https://opensource.org/licenses/MIT.
    */
    /**
     * An implementation of a
     * [stale-while-revalidate]{@link https://developers.google.com/web/fundamentals/instant-and-offline/offline-cookbook/#stale-while-revalidate}
     * request strategy.
     *
     * Resources are requested from both the cache and the network in parallel.
     * The strategy will respond with the cached version if available, otherwise
     * wait for the network response. The cache is updated with the network response
     * with each successful request.
     *
     * By default, this strategy will cache responses with a 200 status code as
     * well as [opaque responses]{@link https://developers.google.com/web/tools/workbox/guides/handle-third-party-requests}.
     * Opaque responses are cross-origin requests where the response doesn't
     * support [CORS]{@link https://enable-cors.org/}.
     *
     * If the network request fails, and there is no cache match, this will throw
     * a `WorkboxError` exception.
     *
     * @memberof module:workbox-strategies
     */

    class StaleWhileRevalidate {
      /**
       * @param {Object} options
       * @param {string} options.cacheName Cache name to store and retrieve
       * requests. Defaults to cache names provided by
       * [workbox-core]{@link module:workbox-core.cacheNames}.
       * @param {Array<Object>} options.plugins [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
       * to use in conjunction with this caching strategy.
       * @param {Object} options.fetchOptions Values passed along to the
       * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
       * of all fetch() requests made by this strategy.
       * @param {Object} options.matchOptions [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
       */
      constructor(options = {}) {
        this._cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName);
        this._plugins = options.plugins || [];

        if (options.plugins) {
          const isUsingCacheWillUpdate = options.plugins.some(plugin => !!plugin.cacheWillUpdate);
          this._plugins = isUsingCacheWillUpdate ? options.plugins : [cacheOkAndOpaquePlugin, ...options.plugins];
        } else {
          // No plugins passed in, use the default plugin.
          this._plugins = [cacheOkAndOpaquePlugin];
        }

        this._fetchOptions = options.fetchOptions;
        this._matchOptions = options.matchOptions;
      }
      /**
       * This method will perform a request strategy and follows an API that
       * will work with the
       * [Workbox Router]{@link module:workbox-routing.Router}.
       *
       * @param {Object} options
       * @param {Request|string} options.request A request to run this strategy for.
       * @param {Event} [options.event] The event that triggered the request.
       * @return {Promise<Response>}
       */


      async handle({
        event,
        request
      }) {
        const logs = [];

        if (typeof request === 'string') {
          request = new Request(request);
        }

        {
          assert_js.assert.isInstance(request, Request, {
            moduleName: 'workbox-strategies',
            className: 'StaleWhileRevalidate',
            funcName: 'handle',
            paramName: 'request'
          });
        }

        const fetchAndCachePromise = this._getFromNetwork({
          request,
          event
        });

        let response = await cacheWrapper_js.cacheWrapper.match({
          cacheName: this._cacheName,
          request,
          event,
          matchOptions: this._matchOptions,
          plugins: this._plugins
        });
        let error;

        if (response) {
          {
            logs.push(`Found a cached response in the '${this._cacheName}'` + ` cache. Will update with the network response in the background.`);
          }

          if (event) {
            try {
              event.waitUntil(fetchAndCachePromise);
            } catch (error) {
              {
                logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
              }
            }
          }
        } else {
          {
            logs.push(`No response found in the '${this._cacheName}' cache. ` + `Will wait for the network response.`);
          }

          try {
            response = await fetchAndCachePromise;
          } catch (err) {
            error = err;
          }
        }

        {
          logger_js.logger.groupCollapsed(messages.strategyStart('StaleWhileRevalidate', request));

          for (const log of logs) {
            logger_js.logger.log(log);
          }

          messages.printFinalResponse(response);
          logger_js.logger.groupEnd();
        }

        if (!response) {
          throw new WorkboxError_js.WorkboxError('no-response', {
            url: request.url,
            error
          });
        }

        return response;
      }
      /**
       * @param {Object} options
       * @param {Request} options.request
       * @param {Event} [options.event]
       * @return {Promise<Response>}
       *
       * @private
       */


      async _getFromNetwork({
        request,
        event
      }) {
        const response = await fetchWrapper_js.fetchWrapper.fetch({
          request,
          event,
          fetchOptions: this._fetchOptions,
          plugins: this._plugins
        });
        const cachePutPromise = cacheWrapper_js.cacheWrapper.put({
          cacheName: this._cacheName,
          request,
          response: response.clone(),
          event,
          plugins: this._plugins
        });

        if (event) {
          try {
            event.waitUntil(cachePutPromise);
          } catch (error) {
            {
              logger_js.logger.warn(`Unable to ensure service worker stays alive when ` + `updating cache for '${getFriendlyURL_js.getFriendlyURL(request.url)}'.`);
            }
          }
        }

        return response;
      }

    }

    exports.CacheFirst = CacheFirst;
    exports.CacheOnly = CacheOnly;
    exports.NetworkFirst = NetworkFirst;
    exports.NetworkOnly = NetworkOnly;
    exports.StaleWhileRevalidate = StaleWhileRevalidate;

    return exports;

}({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private));