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+(function (global, factory) {
+ typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
+ typeof define === 'function' && define.amd ? define(['exports'], factory) :
+ (global = global || self, factory(global.workbox = {}));
+}(this, function (exports) { 'use strict';
+
+ try {
+ self['workbox:window:4.3.1'] && _();
+ } catch (e) {} // eslint-disable-line
+
+ /*
+ 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.
+ */
+ /**
+ * Sends a data object to a service worker via `postMessage` and resolves with
+ * a response (if any).
+ *
+ * A response can be set in a message handler in the service worker by
+ * calling `event.ports[0].postMessage(...)`, which will resolve the promise
+ * returned by `messageSW()`. If no response is set, the promise will not
+ * resolve.
+ *
+ * @param {ServiceWorker} sw The service worker to send the message to.
+ * @param {Object} data An object to send to the service worker.
+ * @return {Promise<Object|undefined>}
+ *
+ * @memberof module:workbox-window
+ */
+
+ var messageSW = function messageSW(sw, data) {
+ return new Promise(function (resolve) {
+ var messageChannel = new MessageChannel();
+
+ messageChannel.port1.onmessage = function (evt) {
+ return resolve(evt.data);
+ };
+
+ sw.postMessage(data, [messageChannel.port2]);
+ });
+ };
+
+ function _defineProperties(target, props) {
+ for (var i = 0; i < props.length; i++) {
+ var descriptor = props[i];
+ descriptor.enumerable = descriptor.enumerable || false;
+ descriptor.configurable = true;
+ if ("value" in descriptor) descriptor.writable = true;
+ Object.defineProperty(target, descriptor.key, descriptor);
+ }
+ }
+
+ function _createClass(Constructor, protoProps, staticProps) {
+ if (protoProps) _defineProperties(Constructor.prototype, protoProps);
+ if (staticProps) _defineProperties(Constructor, staticProps);
+ return Constructor;
+ }
+
+ function _inheritsLoose(subClass, superClass) {
+ subClass.prototype = Object.create(superClass.prototype);
+ subClass.prototype.constructor = subClass;
+ subClass.__proto__ = superClass;
+ }
+
+ function _assertThisInitialized(self) {
+ if (self === void 0) {
+ throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
+ }
+
+ return self;
+ }
+
+ try {
+ self['workbox:core:4.3.1'] && _();
+ } catch (e) {} // eslint-disable-line
+
+ /*
+ 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.
+ */
+ /**
+ * The Deferred class composes Promises in a way that allows for them to be
+ * resolved or rejected from outside the constructor. In most cases promises
+ * should be used directly, but Deferreds can be necessary when the logic to
+ * resolve a promise must be separate.
+ *
+ * @private
+ */
+
+ var Deferred =
+ /**
+ * Creates a promise and exposes its resolve and reject functions as methods.
+ */
+ function Deferred() {
+ var _this = this;
+
+ this.promise = new Promise(function (resolve, reject) {
+ _this.resolve = resolve;
+ _this.reject = reject;
+ });
+ };
+
+ /*
+ 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.
+ */
+ var logger = function () {
+ var inGroup = false;
+ var methodToColorMap = {
+ debug: "#7f8c8d",
+ // Gray
+ log: "#2ecc71",
+ // Green
+ warn: "#f39c12",
+ // Yellow
+ error: "#c0392b",
+ // Red
+ groupCollapsed: "#3498db",
+ // Blue
+ groupEnd: null // No colored prefix on groupEnd
+
+ };
+
+ var print = function print(method, args) {
+ var _console2;
+
+ if (method === 'groupCollapsed') {
+ // Safari doesn't print all console.groupCollapsed() arguments:
+ // https://bugs.webkit.org/show_bug.cgi?id=182754
+ if (/^((?!chrome|android).)*safari/i.test(navigator.userAgent)) {
+ var _console;
+
+ (_console = console)[method].apply(_console, args);
+
+ return;
+ }
+ }
+
+ var styles = ["background: " + methodToColorMap[method], "border-radius: 0.5em", "color: white", "font-weight: bold", "padding: 2px 0.5em"]; // When in a group, the workbox prefix is not displayed.
+
+ var logPrefix = inGroup ? [] : ['%cworkbox', styles.join(';')];
+
+ (_console2 = console)[method].apply(_console2, logPrefix.concat(args));
+
+ if (method === 'groupCollapsed') {
+ inGroup = true;
+ }
+
+ if (method === 'groupEnd') {
+ inGroup = false;
+ }
+ };
+
+ var api = {};
+
+ var _arr = Object.keys(methodToColorMap);
+
+ var _loop = function _loop() {
+ var method = _arr[_i];
+
+ api[method] = function () {
+ for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
+ args[_key] = arguments[_key];
+ }
+
+ print(method, args);
+ };
+ };
+
+ for (var _i = 0; _i < _arr.length; _i++) {
+ _loop();
+ }
+
+ return api;
+ }();
+
+ /*
+ 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.
+ */
+ /**
+ * A minimal `EventTarget` shim.
+ * This is necessary because not all browsers support constructable
+ * `EventTarget`, so using a real `EventTarget` will error.
+ * @private
+ */
+
+ var EventTargetShim =
+ /*#__PURE__*/
+ function () {
+ /**
+ * Creates an event listener registry
+ *
+ * @private
+ */
+ function EventTargetShim() {
+ // A registry of event types to listeners.
+ this._eventListenerRegistry = {};
+ }
+ /**
+ * @param {string} type
+ * @param {Function} listener
+ * @private
+ */
+
+
+ var _proto = EventTargetShim.prototype;
+
+ _proto.addEventListener = function addEventListener(type, listener) {
+ this._getEventListenersByType(type).add(listener);
+ };
+ /**
+ * @param {string} type
+ * @param {Function} listener
+ * @private
+ */
+
+
+ _proto.removeEventListener = function removeEventListener(type, listener) {
+ this._getEventListenersByType(type).delete(listener);
+ };
+ /**
+ * @param {Event} event
+ * @private
+ */
+
+
+ _proto.dispatchEvent = function dispatchEvent(event) {
+ event.target = this;
+
+ this._getEventListenersByType(event.type).forEach(function (listener) {
+ return listener(event);
+ });
+ };
+ /**
+ * Returns a Set of listeners associated with the passed event type.
+ * If no handlers have been registered, an empty Set is returned.
+ *
+ * @param {string} type The event type.
+ * @return {Set} An array of handler functions.
+ * @private
+ */
+
+
+ _proto._getEventListenersByType = function _getEventListenersByType(type) {
+ return this._eventListenerRegistry[type] = this._eventListenerRegistry[type] || new Set();
+ };
+
+ return EventTargetShim;
+ }();
+
+ /*
+ 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.
+ */
+ /**
+ * Returns true if two URLs have the same `.href` property. The URLS can be
+ * relative, and if they are the current location href is used to resolve URLs.
+ *
+ * @private
+ * @param {string} url1
+ * @param {string} url2
+ * @return {boolean}
+ */
+
+ var urlsMatch = function urlsMatch(url1, url2) {
+ return new URL(url1, location).href === new URL(url2, location).href;
+ };
+
+ /*
+ 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.
+ */
+ /**
+ * A minimal `Event` subclass shim.
+ * This doesn't *actually* subclass `Event` because not all browsers support
+ * constructable `EventTarget`, and using a real `Event` will error.
+ * @private
+ */
+
+ var WorkboxEvent =
+ /**
+ * @param {string} type
+ * @param {Object} props
+ */
+ function WorkboxEvent(type, props) {
+ Object.assign(this, props, {
+ type: type
+ });
+ };
+
+ function _catch(body, recover) {
+ try {
+ var result = body();
+ } catch (e) {
+ return recover(e);
+ }
+
+ if (result && result.then) {
+ return result.then(void 0, recover);
+ }
+
+ return result;
+ }
+
+ function _async(f) {
+ return function () {
+ for (var args = [], i = 0; i < arguments.length; i++) {
+ args[i] = arguments[i];
+ }
+
+ try {
+ return Promise.resolve(f.apply(this, args));
+ } catch (e) {
+ return Promise.reject(e);
+ }
+ };
+ }
+
+ function _invoke(body, then) {
+ var result = body();
+
+ if (result && result.then) {
+ return result.then(then);
+ }
+
+ return then(result);
+ }
+
+ function _await(value, then, direct) {
+ if (direct) {
+ return then ? then(value) : value;
+ }
+
+ if (!value || !value.then) {
+ value = Promise.resolve(value);
+ }
+
+ return then ? value.then(then) : value;
+ }
+
+ function _awaitIgnored(value, direct) {
+ if (!direct) {
+ return value && value.then ? value.then(_empty) : Promise.resolve();
+ }
+ }
+
+ function _empty() {}
+ // `skipWaiting()` wasn't called. This 200 amount wasn't scientifically
+ // chosen, but it seems to avoid false positives in my testing.
+
+ var WAITING_TIMEOUT_DURATION = 200; // The amount of time after a registration that we can reasonably conclude
+ // that the registration didn't trigger an update.
+
+ var REGISTRATION_TIMEOUT_DURATION = 60000;
+ /**
+ * A class to aid in handling service worker registration, updates, and
+ * reacting to service worker lifecycle events.
+ *
+ * @fires [message]{@link module:workbox-window.Workbox#message}
+ * @fires [installed]{@link module:workbox-window.Workbox#installed}
+ * @fires [waiting]{@link module:workbox-window.Workbox#waiting}
+ * @fires [controlling]{@link module:workbox-window.Workbox#controlling}
+ * @fires [activated]{@link module:workbox-window.Workbox#activated}
+ * @fires [redundant]{@link module:workbox-window.Workbox#redundant}
+ * @fires [externalinstalled]{@link module:workbox-window.Workbox#externalinstalled}
+ * @fires [externalwaiting]{@link module:workbox-window.Workbox#externalwaiting}
+ * @fires [externalactivated]{@link module:workbox-window.Workbox#externalactivated}
+ *
+ * @memberof module:workbox-window
+ */
+
+ var Workbox =
+ /*#__PURE__*/
+ function (_EventTargetShim) {
+ _inheritsLoose(Workbox, _EventTargetShim);
+
+ /**
+ * Creates a new Workbox instance with a script URL and service worker
+ * options. The script URL and options are the same as those used when
+ * calling `navigator.serviceWorker.register(scriptURL, options)`. See:
+ * https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorkerContainer/register
+ *
+ * @param {string} scriptURL The service worker script associated with this
+ * instance.
+ * @param {Object} [registerOptions] The service worker options associated
+ * with this instance.
+ */
+ function Workbox(scriptURL, registerOptions) {
+ var _this;
+
+ if (registerOptions === void 0) {
+ registerOptions = {};
+ }
+
+ _this = _EventTargetShim.call(this) || this;
+ _this._scriptURL = scriptURL;
+ _this._registerOptions = registerOptions;
+ _this._updateFoundCount = 0; // Deferreds we can resolve later.
+
+ _this._swDeferred = new Deferred();
+ _this._activeDeferred = new Deferred();
+ _this._controllingDeferred = new Deferred(); // Bind event handler callbacks.
+
+ _this._onMessage = _this._onMessage.bind(_assertThisInitialized(_assertThisInitialized(_this)));
+ _this._onStateChange = _this._onStateChange.bind(_assertThisInitialized(_assertThisInitialized(_this)));
+ _this._onUpdateFound = _this._onUpdateFound.bind(_assertThisInitialized(_assertThisInitialized(_this)));
+ _this._onControllerChange = _this._onControllerChange.bind(_assertThisInitialized(_assertThisInitialized(_this)));
+ return _this;
+ }
+ /**
+ * Registers a service worker for this instances script URL and service
+ * worker options. By default this method delays registration until after
+ * the window has loaded.
+ *
+ * @param {Object} [options]
+ * @param {Function} [options.immediate=false] Setting this to true will
+ * register the service worker immediately, even if the window has
+ * not loaded (not recommended).
+ */
+
+
+ var _proto = Workbox.prototype;
+ _proto.register = _async(function (_temp) {
+ var _this2 = this;
+
+ var _ref = _temp === void 0 ? {} : _temp,
+ _ref$immediate = _ref.immediate,
+ immediate = _ref$immediate === void 0 ? false : _ref$immediate;
+
+ {
+ if (_this2._registrationTime) {
+ logger.error('Cannot re-register a Workbox instance after it has ' + 'been registered. Create a new instance instead.');
+ return;
+ }
+ }
+
+ return _invoke(function () {
+ if (!immediate && document.readyState !== 'complete') {
+ return _awaitIgnored(new Promise(function (res) {
+ return addEventListener('load', res);
+ }));
+ }
+ }, function () {
+ // Set this flag to true if any service worker was controlling the page
+ // at registration time.
+ _this2._isUpdate = Boolean(navigator.serviceWorker.controller); // Before registering, attempt to determine if a SW is already controlling
+ // the page, and if that SW script (and version, if specified) matches this
+ // instance's script.
+
+ _this2._compatibleControllingSW = _this2._getControllingSWIfCompatible();
+ return _await(_this2._registerScript(), function (_this2$_registerScrip) {
+ _this2._registration = _this2$_registerScrip;
+
+ // If we have a compatible controller, store the controller as the "own"
+ // SW, resolve active/controlling deferreds and add necessary listeners.
+ if (_this2._compatibleControllingSW) {
+ _this2._sw = _this2._compatibleControllingSW;
+
+ _this2._activeDeferred.resolve(_this2._compatibleControllingSW);
+
+ _this2._controllingDeferred.resolve(_this2._compatibleControllingSW);
+
+ _this2._reportWindowReady(_this2._compatibleControllingSW);
+
+ _this2._compatibleControllingSW.addEventListener('statechange', _this2._onStateChange, {
+ once: true
+ });
+ } // If there's a waiting service worker with a matching URL before the
+ // `updatefound` event fires, it likely means that this site is open
+ // in another tab, or the user refreshed the page (and thus the prevoius
+ // page wasn't fully unloaded before this page started loading).
+ // https://developers.google.com/web/fundamentals/primers/service-workers/lifecycle#waiting
+
+
+ var waitingSW = _this2._registration.waiting;
+
+ if (waitingSW && urlsMatch(waitingSW.scriptURL, _this2._scriptURL)) {
+ // Store the waiting SW as the "own" Sw, even if it means overwriting
+ // a compatible controller.
+ _this2._sw = waitingSW; // Run this in the next microtask, so any code that adds an event
+ // listener after awaiting `register()` will get this event.
+
+ Promise.resolve().then(function () {
+ _this2.dispatchEvent(new WorkboxEvent('waiting', {
+ sw: waitingSW,
+ wasWaitingBeforeRegister: true
+ }));
+
+ {
+ logger.warn('A service worker was already waiting to activate ' + 'before this script was registered...');
+ }
+ });
+ } // If an "own" SW is already set, resolve the deferred.
+
+
+ if (_this2._sw) {
+ _this2._swDeferred.resolve(_this2._sw);
+ }
+
+ {
+ logger.log('Successfully registered service worker.', _this2._scriptURL);
+
+ if (navigator.serviceWorker.controller) {
+ if (_this2._compatibleControllingSW) {
+ logger.debug('A service worker with the same script URL ' + 'is already controlling this page.');
+ } else {
+ logger.debug('A service worker with a different script URL is ' + 'currently controlling the page. The browser is now fetching ' + 'the new script now...');
+ }
+ }
+
+ var currentPageIsOutOfScope = function currentPageIsOutOfScope() {
+ var scopeURL = new URL(_this2._registerOptions.scope || _this2._scriptURL, document.baseURI);
+ var scopeURLBasePath = new URL('./', scopeURL.href).pathname;
+ return !location.pathname.startsWith(scopeURLBasePath);
+ };
+
+ if (currentPageIsOutOfScope()) {
+ logger.warn('The current page is not in scope for the registered ' + 'service worker. Was this a mistake?');
+ }
+ }
+
+ _this2._registration.addEventListener('updatefound', _this2._onUpdateFound);
+
+ navigator.serviceWorker.addEventListener('controllerchange', _this2._onControllerChange, {
+ once: true
+ }); // Add message listeners.
+
+ if ('BroadcastChannel' in self) {
+ _this2._broadcastChannel = new BroadcastChannel('workbox');
+
+ _this2._broadcastChannel.addEventListener('message', _this2._onMessage);
+ }
+
+ navigator.serviceWorker.addEventListener('message', _this2._onMessage);
+ return _this2._registration;
+ });
+ });
+ });
+ /**
+ * Resolves to the service worker registered by this instance as soon as it
+ * is active. If a service worker was already controlling at registration
+ * time then it will resolve to that if the script URLs (and optionally
+ * script versions) match, otherwise it will wait until an update is found
+ * and activates.
+ *
+ * @return {Promise<ServiceWorker>}
+ */
+
+ /**
+ * Resolves with a reference to a service worker that matches the script URL
+ * of this instance, as soon as it's available.
+ *
+ * If, at registration time, there's already an active or waiting service
+ * worker with a matching script URL, it will be used (with the waiting
+ * service worker taking precedence over the active service worker if both
+ * match, since the waiting service worker would have been registered more
+ * recently).
+ * If there's no matching active or waiting service worker at registration
+ * time then the promise will not resolve until an update is found and starts
+ * installing, at which point the installing service worker is used.
+ *
+ * @return {Promise<ServiceWorker>}
+ */
+ _proto.getSW = _async(function () {
+ var _this3 = this;
+
+ // If `this._sw` is set, resolve with that as we want `getSW()` to
+ // return the correct (new) service worker if an update is found.
+ return _this3._sw || _this3._swDeferred.promise;
+ });
+ /**
+ * Sends the passed data object to the service worker registered by this
+ * instance (via [`getSW()`]{@link module:workbox-window.Workbox#getSW}) and resolves
+ * with a response (if any).
+ *
+ * A response can be set in a message handler in the service worker by
+ * calling `event.ports[0].postMessage(...)`, which will resolve the promise
+ * returned by `messageSW()`. If no response is set, the promise will never
+ * resolve.
+ *
+ * @param {Object} data An object to send to the service worker
+ * @return {Promise<Object>}
+ */
+
+ _proto.messageSW = _async(function (data) {
+ var _this4 = this;
+
+ return _await(_this4.getSW(), function (sw) {
+ return messageSW(sw, data);
+ });
+ });
+ /**
+ * Checks for a service worker already controlling the page and returns
+ * it if its script URL matchs.
+ *
+ * @private
+ * @return {ServiceWorker|undefined}
+ */
+
+ _proto._getControllingSWIfCompatible = function _getControllingSWIfCompatible() {
+ var controller = navigator.serviceWorker.controller;
+
+ if (controller && urlsMatch(controller.scriptURL, this._scriptURL)) {
+ return controller;
+ }
+ };
+ /**
+ * Registers a service worker for this instances script URL and register
+ * options and tracks the time registration was complete.
+ *
+ * @private
+ */
+
+
+ _proto._registerScript = _async(function () {
+ var _this5 = this;
+
+ return _catch(function () {
+ return _await(navigator.serviceWorker.register(_this5._scriptURL, _this5._registerOptions), function (reg) {
+ // Keep track of when registration happened, so it can be used in the
+ // `this._onUpdateFound` heuristic. Also use the presence of this
+ // property as a way to see if `.register()` has been called.
+ _this5._registrationTime = performance.now();
+ return reg;
+ });
+ }, function (error) {
+ {
+ logger.error(error);
+ } // Re-throw the error.
+
+
+ throw error;
+ });
+ });
+ /**
+ * Sends a message to the passed service worker that the window is ready.
+ *
+ * @param {ServiceWorker} sw
+ * @private
+ */
+
+ _proto._reportWindowReady = function _reportWindowReady(sw) {
+ messageSW(sw, {
+ type: 'WINDOW_READY',
+ meta: 'workbox-window'
+ });
+ };
+ /**
+ * @private
+ */
+
+
+ _proto._onUpdateFound = function _onUpdateFound() {
+ var installingSW = this._registration.installing; // If the script URL passed to `navigator.serviceWorker.register()` is
+ // different from the current controlling SW's script URL, we know any
+ // successful registration calls will trigger an `updatefound` event.
+ // But if the registered script URL is the same as the current controlling
+ // SW's script URL, we'll only get an `updatefound` event if the file
+ // changed since it was last registered. This can be a problem if the user
+ // opens up the same page in a different tab, and that page registers
+ // a SW that triggers an update. It's a problem because this page has no
+ // good way of knowing whether the `updatefound` event came from the SW
+ // script it registered or from a registration attempt made by a newer
+ // version of the page running in another tab.
+ // To minimize the possibility of a false positive, we use the logic here:
+
+ var updateLikelyTriggeredExternally = // Since we enforce only calling `register()` once, and since we don't
+ // add the `updatefound` event listener until the `register()` call, if
+ // `_updateFoundCount` is > 0 then it means this method has already
+ // been called, thus this SW must be external
+ this._updateFoundCount > 0 || // If the script URL of the installing SW is different from this
+ // instance's script URL, we know it's definitely not from our
+ // registration.
+ !urlsMatch(installingSW.scriptURL, this._scriptURL) || // If all of the above are false, then we use a time-based heuristic:
+ // Any `updatefound` event that occurs long after our registration is
+ // assumed to be external.
+ performance.now() > this._registrationTime + REGISTRATION_TIMEOUT_DURATION ? // If any of the above are not true, we assume the update was
+ // triggered by this instance.
+ true : false;
+
+ if (updateLikelyTriggeredExternally) {
+ this._externalSW = installingSW;
+
+ this._registration.removeEventListener('updatefound', this._onUpdateFound);
+ } else {
+ // If the update was not triggered externally we know the installing
+ // SW is the one we registered, so we set it.
+ this._sw = installingSW;
+
+ this._swDeferred.resolve(installingSW); // The `installing` state isn't something we have a dedicated
+ // callback for, but we do log messages for it in development.
+
+
+ {
+ if (navigator.serviceWorker.controller) {
+ logger.log('Updated service worker found. Installing now...');
+ } else {
+ logger.log('Service worker is installing...');
+ }
+ }
+ } // Increment the `updatefound` count, so future invocations of this
+ // method can be sure they were triggered externally.
+
+
+ ++this._updateFoundCount; // Add a `statechange` listener regardless of whether this update was
+ // triggered externally, since we have callbacks for both.
+
+ installingSW.addEventListener('statechange', this._onStateChange);
+ };
+ /**
+ * @private
+ * @param {Event} originalEvent
+ */
+
+
+ _proto._onStateChange = function _onStateChange(originalEvent) {
+ var _this6 = this;
+
+ var sw = originalEvent.target;
+ var state = sw.state;
+ var isExternal = sw === this._externalSW;
+ var eventPrefix = isExternal ? 'external' : '';
+ var eventProps = {
+ sw: sw,
+ originalEvent: originalEvent
+ };
+
+ if (!isExternal && this._isUpdate) {
+ eventProps.isUpdate = true;
+ }
+
+ this.dispatchEvent(new WorkboxEvent(eventPrefix + state, eventProps));
+
+ if (state === 'installed') {
+ // This timeout is used to ignore cases where the service worker calls
+ // `skipWaiting()` in the install event, thus moving it directly in the
+ // activating state. (Since all service workers *must* go through the
+ // waiting phase, the only way to detect `skipWaiting()` called in the
+ // install event is to observe that the time spent in the waiting phase
+ // is very short.)
+ // NOTE: we don't need separate timeouts for the own and external SWs
+ // since they can't go through these phases at the same time.
+ this._waitingTimeout = setTimeout(function () {
+ // Ensure the SW is still waiting (it may now be redundant).
+ if (state === 'installed' && _this6._registration.waiting === sw) {
+ _this6.dispatchEvent(new WorkboxEvent(eventPrefix + 'waiting', eventProps));
+
+ {
+ if (isExternal) {
+ logger.warn('An external service worker has installed but is ' + 'waiting for this client to close before activating...');
+ } else {
+ logger.warn('The service worker has installed but is waiting ' + 'for existing clients to close before activating...');
+ }
+ }
+ }
+ }, WAITING_TIMEOUT_DURATION);
+ } else if (state === 'activating') {
+ clearTimeout(this._waitingTimeout);
+
+ if (!isExternal) {
+ this._activeDeferred.resolve(sw);
+ }
+ }
+
+ {
+ switch (state) {
+ case 'installed':
+ if (isExternal) {
+ logger.warn('An external service worker has installed. ' + 'You may want to suggest users reload this page.');
+ } else {
+ logger.log('Registered service worker installed.');
+ }
+
+ break;
+
+ case 'activated':
+ if (isExternal) {
+ logger.warn('An external service worker has activated.');
+ } else {
+ logger.log('Registered service worker activated.');
+
+ if (sw !== navigator.serviceWorker.controller) {
+ logger.warn('The registered service worker is active but ' + 'not yet controlling the page. Reload or run ' + '`clients.claim()` in the service worker.');
+ }
+ }
+
+ break;
+
+ case 'redundant':
+ if (sw === this._compatibleControllingSW) {
+ logger.log('Previously controlling service worker now redundant!');
+ } else if (!isExternal) {
+ logger.log('Registered service worker now redundant!');
+ }
+
+ break;
+ }
+ }
+ };
+ /**
+ * @private
+ * @param {Event} originalEvent
+ */
+
+
+ _proto._onControllerChange = function _onControllerChange(originalEvent) {
+ var sw = this._sw;
+
+ if (sw === navigator.serviceWorker.controller) {
+ this.dispatchEvent(new WorkboxEvent('controlling', {
+ sw: sw,
+ originalEvent: originalEvent
+ }));
+
+ {
+ logger.log('Registered service worker now controlling this page.');
+ }
+
+ this._controllingDeferred.resolve(sw);
+ }
+ };
+ /**
+ * @private
+ * @param {Event} originalEvent
+ */
+
+
+ _proto._onMessage = function _onMessage(originalEvent) {
+ var data = originalEvent.data;
+ this.dispatchEvent(new WorkboxEvent('message', {
+ data: data,
+ originalEvent: originalEvent
+ }));
+ };
+
+ _createClass(Workbox, [{
+ key: "active",
+ get: function get() {
+ return this._activeDeferred.promise;
+ }
+ /**
+ * Resolves to the service worker registered by this instance as soon as it
+ * is controlling the page. If a service worker was already controlling at
+ * registration time then it will resolve to that if the script URLs (and
+ * optionally script versions) match, otherwise it will wait until an update
+ * is found and starts controlling the page.
+ * Note: the first time a service worker is installed it will active but
+ * not start controlling the page unless `clients.claim()` is called in the
+ * service worker.
+ *
+ * @return {Promise<ServiceWorker>}
+ */
+
+ }, {
+ key: "controlling",
+ get: function get() {
+ return this._controllingDeferred.promise;
+ }
+ }]);
+
+ return Workbox;
+ }(EventTargetShim); // The jsdoc comments below outline the events this instance may dispatch:
+
+ /*
+ 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.
+ */
+
+ exports.Workbox = Workbox;
+ exports.messageSW = messageSW;
+
+ Object.defineProperty(exports, '__esModule', { value: true });
+
+}));
+//# sourceMappingURL=workbox-window.dev.umd.js.map