v1.0 with SW PWA enabled

frontend/node_modules/workbox-google-analytics/build/workbox-offline-ga.dev.js

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+this.workbox = this.workbox || {};
+this.workbox.googleAnalytics = (function (exports, BackgroundSyncPlugin_js, cacheNames_js, getFriendlyURL_js, logger_js, Route_js, Router_js, NetworkFirst_js, NetworkOnly_js) {
+    'use strict';
+
+    // @ts-ignore
+    try {
+      self['workbox:google-analytics: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.
+    */
+    const QUEUE_NAME = 'workbox-google-analytics';
+    const MAX_RETENTION_TIME = 60 * 48; // Two days in minutes
+    const GOOGLE_ANALYTICS_HOST = 'www.google-analytics.com';
+    const GTM_HOST = 'www.googletagmanager.com';
+    const ANALYTICS_JS_PATH = '/analytics.js';
+    const GTAG_JS_PATH = '/gtag/js';
+    const GTM_JS_PATH = '/gtm.js';
+    // This RegExp matches all known Measurement Protocol single-hit collect
+    // endpoints. Most of the time the default path (/collect) is used, but
+    // occasionally an experimental endpoint is used when testing new features,
+    // (e.g. /r/collect or /j/collect)
+    const COLLECT_PATHS_REGEX = /^\/(\w+\/)?collect/;
+
+    /*
+      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.
+    */
+    /**
+     * Creates the requestWillDequeue callback to be used with the background
+     * sync plugin. The callback takes the failed request and adds the
+     * `qt` param based on the current time, as well as applies any other
+     * user-defined hit modifications.
+     *
+     * @param {Object} config See {@link workbox-google-analytics.initialize}.
+     * @return {Function} The requestWillDequeue callback function.
+     *
+     * @private
+     */
+    const createOnSyncCallback = config => {
+      return async ({
+        queue
+      }) => {
+        let entry;
+        while (entry = await queue.shiftRequest()) {
+          const {
+            request,
+            timestamp
+          } = entry;
+          const url = new URL(request.url);
+          try {
+            // Measurement protocol requests can set their payload parameters in
+            // either the URL query string (for GET requests) or the POST body.
+            const params = request.method === 'POST' ? new URLSearchParams(await request.clone().text()) : url.searchParams;
+            // Calculate the qt param, accounting for the fact that an existing
+            // qt param may be present and should be updated rather than replaced.
+            const originalHitTime = timestamp - (Number(params.get('qt')) || 0);
+            const queueTime = Date.now() - originalHitTime;
+            // Set the qt param prior to applying hitFilter or parameterOverrides.
+            params.set('qt', String(queueTime));
+            // Apply `parameterOverrides`, if set.
+            if (config.parameterOverrides) {
+              for (const param of Object.keys(config.parameterOverrides)) {
+                const value = config.parameterOverrides[param];
+                params.set(param, value);
+              }
+            }
+            // Apply `hitFilter`, if set.
+            if (typeof config.hitFilter === 'function') {
+              config.hitFilter.call(null, params);
+            }
+            // Retry the fetch. Ignore URL search params from the URL as they're
+            // now in the post body.
+            await fetch(new Request(url.origin + url.pathname, {
+              body: params.toString(),
+              method: 'POST',
+              mode: 'cors',
+              credentials: 'omit',
+              headers: {
+                'Content-Type': 'text/plain'
+              }
+            }));
+            if ("dev" !== 'production') {
+              logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(url.href)}' ` + `has been replayed`);
+            }
+          } catch (err) {
+            await queue.unshiftRequest(entry);
+            {
+              logger_js.logger.log(`Request for '${getFriendlyURL_js.getFriendlyURL(url.href)}' ` + `failed to replay, putting it back in the queue.`);
+            }
+            throw err;
+          }
+        }
+        {
+          logger_js.logger.log(`All Google Analytics request successfully replayed; ` + `the queue is now empty!`);
+        }
+      };
+    };
+    /**
+     * Creates GET and POST routes to catch failed Measurement Protocol hits.
+     *
+     * @param {BackgroundSyncPlugin} bgSyncPlugin
+     * @return {Array<Route>} The created routes.
+     *
+     * @private
+     */
+    const createCollectRoutes = bgSyncPlugin => {
+      const match = ({
+        url
+      }) => url.hostname === GOOGLE_ANALYTICS_HOST && COLLECT_PATHS_REGEX.test(url.pathname);
+      const handler = new NetworkOnly_js.NetworkOnly({
+        plugins: [bgSyncPlugin]
+      });
+      return [new Route_js.Route(match, handler, 'GET'), new Route_js.Route(match, handler, 'POST')];
+    };
+    /**
+     * Creates a route with a network first strategy for the analytics.js script.
+     *
+     * @param {string} cacheName
+     * @return {Route} The created route.
+     *
+     * @private
+     */
+    const createAnalyticsJsRoute = cacheName => {
+      const match = ({
+        url
+      }) => url.hostname === GOOGLE_ANALYTICS_HOST && url.pathname === ANALYTICS_JS_PATH;
+      const handler = new NetworkFirst_js.NetworkFirst({
+        cacheName
+      });
+      return new Route_js.Route(match, handler, 'GET');
+    };
+    /**
+     * Creates a route with a network first strategy for the gtag.js script.
+     *
+     * @param {string} cacheName
+     * @return {Route} The created route.
+     *
+     * @private
+     */
+    const createGtagJsRoute = cacheName => {
+      const match = ({
+        url
+      }) => url.hostname === GTM_HOST && url.pathname === GTAG_JS_PATH;
+      const handler = new NetworkFirst_js.NetworkFirst({
+        cacheName
+      });
+      return new Route_js.Route(match, handler, 'GET');
+    };
+    /**
+     * Creates a route with a network first strategy for the gtm.js script.
+     *
+     * @param {string} cacheName
+     * @return {Route} The created route.
+     *
+     * @private
+     */
+    const createGtmJsRoute = cacheName => {
+      const match = ({
+        url
+      }) => url.hostname === GTM_HOST && url.pathname === GTM_JS_PATH;
+      const handler = new NetworkFirst_js.NetworkFirst({
+        cacheName
+      });
+      return new Route_js.Route(match, handler, 'GET');
+    };
+    /**
+     * @param {Object=} [options]
+     * @param {Object} [options.cacheName] The cache name to store and retrieve
+     *     analytics.js. Defaults to the cache names provided by `workbox-core`.
+     * @param {Object} [options.parameterOverrides]
+     *     [Measurement Protocol parameters](https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters),
+     *     expressed as key/value pairs, to be added to replayed Google Analytics
+     *     requests. This can be used to, e.g., set a custom dimension indicating
+     *     that the request was replayed.
+     * @param {Function} [options.hitFilter] A function that allows you to modify
+     *     the hit parameters prior to replaying
+     *     the hit. The function is invoked with the original hit's URLSearchParams
+     *     object as its only argument.
+     *
+     * @memberof workbox-google-analytics
+     */
+    const initialize = (options = {}) => {
+      const cacheName = cacheNames_js.cacheNames.getGoogleAnalyticsName(options.cacheName);
+      const bgSyncPlugin = new BackgroundSyncPlugin_js.BackgroundSyncPlugin(QUEUE_NAME, {
+        maxRetentionTime: MAX_RETENTION_TIME,
+        onSync: createOnSyncCallback(options)
+      });
+      const routes = [createGtmJsRoute(cacheName), createAnalyticsJsRoute(cacheName), createGtagJsRoute(cacheName), ...createCollectRoutes(bgSyncPlugin)];
+      const router = new Router_js.Router();
+      for (const route of routes) {
+        router.registerRoute(route);
+      }
+      router.addFetchListener();
+    };
+
+    exports.initialize = initialize;
+
+    return exports;
+
+})({}, workbox.backgroundSync, workbox.core._private, workbox.core._private, workbox.core._private, workbox.routing, workbox.routing, workbox.strategies, workbox.strategies);
+//# sourceMappingURL=workbox-offline-ga.dev.js.map