v1.0 with SW PWA enabled

frontend/node_modules/workbox-broadcast-update/build/workbox-broadcast-update.dev.js

@@ -0,0 +1,282 @@
+this.workbox = this.workbox || {};
+this.workbox.broadcastUpdate = (function (exports, assert_js, timeout_js, resultingClientExists_js, logger_js, WorkboxError_js, dontWaitFor_js) {
+    'use strict';
+
+    // @ts-ignore
+    try {
+      self['workbox:broadcast-update:7.3.0'] && _();
+    } catch (e) {}
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * Given two `Response's`, compares several header values to see if they are
+     * the same or not.
+     *
+     * @param {Response} firstResponse
+     * @param {Response} secondResponse
+     * @param {Array<string>} headersToCheck
+     * @return {boolean}
+     *
+     * @memberof workbox-broadcast-update
+     */
+    const responsesAreSame = (firstResponse, secondResponse, headersToCheck) => {
+      {
+        if (!(firstResponse instanceof Response && secondResponse instanceof Response)) {
+          throw new WorkboxError_js.WorkboxError('invalid-responses-are-same-args');
+        }
+      }
+      const atLeastOneHeaderAvailable = headersToCheck.some(header => {
+        return firstResponse.headers.has(header) && secondResponse.headers.has(header);
+      });
+      if (!atLeastOneHeaderAvailable) {
+        {
+          logger_js.logger.warn(`Unable to determine where the response has been updated ` + `because none of the headers that would be checked are present.`);
+          logger_js.logger.debug(`Attempting to compare the following: `, firstResponse, secondResponse, headersToCheck);
+        }
+        // Just return true, indicating the that responses are the same, since we
+        // can't determine otherwise.
+        return true;
+      }
+      return headersToCheck.every(header => {
+        const headerStateComparison = firstResponse.headers.has(header) === secondResponse.headers.has(header);
+        const headerValueComparison = firstResponse.headers.get(header) === secondResponse.headers.get(header);
+        return headerStateComparison && headerValueComparison;
+      });
+    };
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    const CACHE_UPDATED_MESSAGE_TYPE = 'CACHE_UPDATED';
+    const CACHE_UPDATED_MESSAGE_META = 'workbox-broadcast-update';
+    const NOTIFY_ALL_CLIENTS = true;
+    const DEFAULT_HEADERS_TO_CHECK = ['content-length', 'etag', 'last-modified'];
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    // UA-sniff Safari: https://stackoverflow.com/questions/7944460/detect-safari-browser
+    // TODO(philipwalton): remove once this Safari bug fix has been released.
+    // https://bugs.webkit.org/show_bug.cgi?id=201169
+    const isSafari = /^((?!chrome|android).)*safari/i.test(navigator.userAgent);
+    /**
+     * Generates the default payload used in update messages. By default the
+     * payload includes the `cacheName` and `updatedURL` fields.
+     *
+     * @return Object
+     * @private
+     */
+    function defaultPayloadGenerator(data) {
+      return {
+        cacheName: data.cacheName,
+        updatedURL: data.request.url
+      };
+    }
+    /**
+     * Uses the `postMessage()` API to inform any open windows/tabs when a cached
+     * response has been updated.
+     *
+     * For efficiency's sake, the underlying response bodies are not compared;
+     * only specific response headers are checked.
+     *
+     * @memberof workbox-broadcast-update
+     */
+    class BroadcastCacheUpdate {
+      /**
+       * Construct a BroadcastCacheUpdate instance with a specific `channelName` to
+       * broadcast messages on
+       *
+       * @param {Object} [options]
+       * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]
+       *     A list of headers that will be used to determine whether the responses
+       *     differ.
+       * @param {string} [options.generatePayload] A function whose return value
+       *     will be used as the `payload` field in any cache update messages sent
+       *     to the window clients.
+       * @param {boolean} [options.notifyAllClients=true] If true (the default) then
+       *     all open clients will receive a message. If false, then only the client
+       *     that make the original request will be notified of the update.
+       */
+      constructor({
+        generatePayload,
+        headersToCheck,
+        notifyAllClients
+      } = {}) {
+        this._headersToCheck = headersToCheck || DEFAULT_HEADERS_TO_CHECK;
+        this._generatePayload = generatePayload || defaultPayloadGenerator;
+        this._notifyAllClients = notifyAllClients !== null && notifyAllClients !== void 0 ? notifyAllClients : NOTIFY_ALL_CLIENTS;
+      }
+      /**
+       * Compares two [Responses](https://developer.mozilla.org/en-US/docs/Web/API/Response)
+       * and sends a message (via `postMessage()`) to all window clients if the
+       * responses differ. Neither of the Responses can be
+       * [opaque](https://developer.chrome.com/docs/workbox/caching-resources-during-runtime/#opaque-responses).
+       *
+       * The message that's posted has the following format (where `payload` can
+       * be customized via the `generatePayload` option the instance is created
+       * with):
+       *
+       * ```
+       * {
+       *   type: 'CACHE_UPDATED',
+       *   meta: 'workbox-broadcast-update',
+       *   payload: {
+       *     cacheName: 'the-cache-name',
+       *     updatedURL: 'https://example.com/'
+       *   }
+       * }
+       * ```
+       *
+       * @param {Object} options
+       * @param {Response} [options.oldResponse] Cached response to compare.
+       * @param {Response} options.newResponse Possibly updated response to compare.
+       * @param {Request} options.request The request.
+       * @param {string} options.cacheName Name of the cache the responses belong
+       *     to. This is included in the broadcast message.
+       * @param {Event} options.event event The event that triggered
+       *     this possible cache update.
+       * @return {Promise} Resolves once the update is sent.
+       */
+      async notifyIfUpdated(options) {
+        {
+          assert_js.assert.isType(options.cacheName, 'string', {
+            moduleName: 'workbox-broadcast-update',
+            className: 'BroadcastCacheUpdate',
+            funcName: 'notifyIfUpdated',
+            paramName: 'cacheName'
+          });
+          assert_js.assert.isInstance(options.newResponse, Response, {
+            moduleName: 'workbox-broadcast-update',
+            className: 'BroadcastCacheUpdate',
+            funcName: 'notifyIfUpdated',
+            paramName: 'newResponse'
+          });
+          assert_js.assert.isInstance(options.request, Request, {
+            moduleName: 'workbox-broadcast-update',
+            className: 'BroadcastCacheUpdate',
+            funcName: 'notifyIfUpdated',
+            paramName: 'request'
+          });
+        }
+        // Without two responses there is nothing to compare.
+        if (!options.oldResponse) {
+          return;
+        }
+        if (!responsesAreSame(options.oldResponse, options.newResponse, this._headersToCheck)) {
+          {
+            logger_js.logger.log(`Newer response found (and cached) for:`, options.request.url);
+          }
+          const messageData = {
+            type: CACHE_UPDATED_MESSAGE_TYPE,
+            meta: CACHE_UPDATED_MESSAGE_META,
+            payload: this._generatePayload(options)
+          };
+          // For navigation requests, wait until the new window client exists
+          // before sending the message
+          if (options.request.mode === 'navigate') {
+            let resultingClientId;
+            if (options.event instanceof FetchEvent) {
+              resultingClientId = options.event.resultingClientId;
+            }
+            const resultingWin = await resultingClientExists_js.resultingClientExists(resultingClientId);
+            // Safari does not currently implement postMessage buffering and
+            // there's no good way to feature detect that, so to increase the
+            // chances of the message being delivered in Safari, we add a timeout.
+            // We also do this if `resultingClientExists()` didn't return a client,
+            // which means it timed out, so it's worth waiting a bit longer.
+            if (!resultingWin || isSafari) {
+              // 3500 is chosen because (according to CrUX data) 80% of mobile
+              // websites hit the DOMContentLoaded event in less than 3.5 seconds.
+              // And presumably sites implementing service worker are on the
+              // higher end of the performance spectrum.
+              await timeout_js.timeout(3500);
+            }
+          }
+          if (this._notifyAllClients) {
+            const windows = await self.clients.matchAll({
+              type: 'window'
+            });
+            for (const win of windows) {
+              win.postMessage(messageData);
+            }
+          } else {
+            // See https://github.com/GoogleChrome/workbox/issues/2895
+            if (options.event instanceof FetchEvent) {
+              const client = await self.clients.get(options.event.clientId);
+              client === null || client === void 0 ? void 0 : client.postMessage(messageData);
+            }
+          }
+        }
+      }
+    }
+
+    /*
+      Copyright 2018 Google LLC
+
+      Use of this source code is governed by an MIT-style
+      license that can be found in the LICENSE file or at
+      https://opensource.org/licenses/MIT.
+    */
+    /**
+     * This plugin will automatically broadcast a message whenever a cached response
+     * is updated.
+     *
+     * @memberof workbox-broadcast-update
+     */
+    class BroadcastUpdatePlugin {
+      /**
+       * Construct a {@link workbox-broadcast-update.BroadcastUpdate} instance with
+       * the passed options and calls its `notifyIfUpdated` method whenever the
+       * plugin's `cacheDidUpdate` callback is invoked.
+       *
+       * @param {Object} [options]
+       * @param {Array<string>} [options.headersToCheck=['content-length', 'etag', 'last-modified']]
+       *     A list of headers that will be used to determine whether the responses
+       *     differ.
+       * @param {string} [options.generatePayload] A function whose return value
+       *     will be used as the `payload` field in any cache update messages sent
+       *     to the window clients.
+       */
+      constructor(options) {
+        /**
+         * A "lifecycle" callback that will be triggered automatically by the
+         * `workbox-sw` and `workbox-runtime-caching` handlers when an entry is
+         * added to a cache.
+         *
+         * @private
+         * @param {Object} options The input object to this function.
+         * @param {string} options.cacheName Name of the cache being updated.
+         * @param {Response} [options.oldResponse] The previous cached value, if any.
+         * @param {Response} options.newResponse The new value in the cache.
+         * @param {Request} options.request The request that triggered the update.
+         * @param {Request} options.event The event that triggered the update.
+         */
+        this.cacheDidUpdate = async options => {
+          dontWaitFor_js.dontWaitFor(this._broadcastUpdate.notifyIfUpdated(options));
+        };
+        this._broadcastUpdate = new BroadcastCacheUpdate(options);
+      }
+    }
+
+    exports.BroadcastCacheUpdate = BroadcastCacheUpdate;
+    exports.BroadcastUpdatePlugin = BroadcastUpdatePlugin;
+    exports.responsesAreSame = responsesAreSame;
+
+    return exports;
+
+})({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private);
+//# sourceMappingURL=workbox-broadcast-update.dev.js.map

frontend/node_modules/workbox-broadcast-update/build/workbox-broadcast-update.prod.js

@@ -0,0 +1,2 @@
+this.workbox=this.workbox||{},this.workbox.broadcastUpdate=function(t,s,a,e){"use strict";try{self["workbox:broadcast-update:7.3.0"]&&_()}catch(t){}const n=(t,s,a)=>!a.some((a=>t.headers.has(a)&&s.headers.has(a)))||a.every((a=>{const e=t.headers.has(a)===s.headers.has(a),n=t.headers.get(a)===s.headers.get(a);return e&&n})),i=["content-length","etag","last-modified"],o=/^((?!chrome|android).)*safari/i.test(navigator.userAgent);function c(t){return{cacheName:t.cacheName,updatedURL:t.request.url}}class r{constructor({generatePayload:t,headersToCheck:s,notifyAllClients:a}={}){this.ht=s||i,this.ft=t||c,this.lt=null==a||a}async notifyIfUpdated(t){if(t.oldResponse&&!n(t.oldResponse,t.newResponse,this.ht)){const e={type:"CACHE_UPDATED",meta:"workbox-broadcast-update",payload:this.ft(t)};if("navigate"===t.request.mode){let e;t.event instanceof FetchEvent&&(e=t.event.resultingClientId);await a.resultingClientExists(e)&&!o||await s.timeout(3500)}if(this.lt){const t=await self.clients.matchAll({type:"window"});for(const s of t)s.postMessage(e)}else if(t.event instanceof FetchEvent){const s=await self.clients.get(t.event.clientId);null==s||s.postMessage(e)}}}}return t.BroadcastCacheUpdate=r,t.BroadcastUpdatePlugin=class{constructor(t){this.cacheDidUpdate=async t=>{e.dontWaitFor(this.dt.notifyIfUpdated(t))},this.dt=new r(t)}},t.responsesAreSame=n,t}({},workbox.core._private,workbox.core._private,workbox.core._private);
+//# sourceMappingURL=workbox-broadcast-update.prod.js.map