this.workbox = this.workbox || {}; this.workbox.strategies = (function (exports, assert_js, logger_js, WorkboxError_js, cacheNames_js, getFriendlyURL_js, cacheMatchIgnoreParams_js, Deferred_js, executeQuotaErrorCallbacks_js, timeout_js) { 'use strict'; // @ts-ignore try { self['workbox:strategies:7.2.0'] && _(); } catch (e) {} /* Copyright 2020 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. */ function toRequest(input) { return typeof input === 'string' ? new Request(input) : input; } /** * A class created every time a Strategy instance instance calls * {@link workbox-strategies.Strategy~handle} or * {@link workbox-strategies.Strategy~handleAll} that wraps all fetch and * cache actions around plugin callbacks and keeps track of when the strategy * is "done" (i.e. all added `event.waitUntil()` promises have resolved). * * @memberof workbox-strategies */ class StrategyHandler { /** * Creates a new instance associated with the passed strategy and event * that's handling the request. * * The constructor also initializes the state that will be passed to each of * the plugins handling this request. * * @param {workbox-strategies.Strategy} strategy * @param {Object} options * @param {Request|string} options.request A request to run this strategy for. * @param {ExtendableEvent} options.event The event associated with the * request. * @param {URL} [options.url] * @param {*} [options.params] The return value from the * {@link workbox-routing~matchCallback} (if applicable). */ constructor(strategy, options) { this._cacheKeys = {}; /** * The request the strategy is performing (passed to the strategy's * `handle()` or `handleAll()` method). * @name request * @instance * @type {Request} * @memberof workbox-strategies.StrategyHandler */ /** * The event associated with this request. * @name event * @instance * @type {ExtendableEvent} * @memberof workbox-strategies.StrategyHandler */ /** * A `URL` instance of `request.url` (if passed to the strategy's * `handle()` or `handleAll()` method). * Note: the `url` param will be present if the strategy was invoked * from a workbox `Route` object. * @name url * @instance * @type {URL|undefined} * @memberof workbox-strategies.StrategyHandler */ /** * A `param` value (if passed to the strategy's * `handle()` or `handleAll()` method). * Note: the `param` param will be present if the strategy was invoked * from a workbox `Route` object and the * {@link workbox-routing~matchCallback} returned * a truthy value (it will be that value). * @name params * @instance * @type {*|undefined} * @memberof workbox-strategies.StrategyHandler */ { assert_js.assert.isInstance(options.event, ExtendableEvent, { moduleName: 'workbox-strategies', className: 'StrategyHandler', funcName: 'constructor', paramName: 'options.event' }); } Object.assign(this, options); this.event = options.event; this._strategy = strategy; this._handlerDeferred = new Deferred_js.Deferred(); this._extendLifetimePromises = []; // Copy the plugins list (since it's mutable on the strategy), // so any mutations don't affect this handler instance. this._plugins = [...strategy.plugins]; this._pluginStateMap = new Map(); for (const plugin of this._plugins) { this._pluginStateMap.set(plugin, {}); } this.event.waitUntil(this._handlerDeferred.promise); } /** * Fetches a given request (and invokes any applicable plugin callback * methods) using the `fetchOptions` (for non-navigation requests) and * `plugins` defined on the `Strategy` object. * * The following plugin lifecycle methods are invoked when using this method: * - `requestWillFetch()` * - `fetchDidSucceed()` * - `fetchDidFail()` * * @param {Request|string} input The URL or request to fetch. * @return {Promise} */ async fetch(input) { const { event } = this; let request = toRequest(input); if (request.mode === 'navigate' && event instanceof FetchEvent && event.preloadResponse) { const possiblePreloadResponse = await event.preloadResponse; if (possiblePreloadResponse) { { logger_js.logger.log(`Using a preloaded navigation response for ` + `'${getFriendlyURL_js.getFriendlyURL(request.url)}'`); } return possiblePreloadResponse; } } // If there is a fetchDidFail plugin, we need to save a clone of the // original request before it's either modified by a requestWillFetch // plugin or before the original request's body is consumed via fetch(). const originalRequest = this.hasCallback('fetchDidFail') ? request.clone() : null; try { for (const cb of this.iterateCallbacks('requestWillFetch')) { request = await cb({ request: request.clone(), event }); } } catch (err) { if (err instanceof Error) { throw new WorkboxError_js.WorkboxError('plugin-error-request-will-fetch', { thrownErrorMessage: err.message }); } } // The request can be altered by plugins with `requestWillFetch` making // the original request (most likely from a `fetch` event) different // from the Request we make. Pass both to `fetchDidFail` to aid debugging. const pluginFilteredRequest = request.clone(); try { let fetchResponse; // See https://github.com/GoogleChrome/workbox/issues/1796 fetchResponse = await fetch(request, request.mode === 'navigate' ? undefined : this._strategy.fetchOptions); if ("dev" !== 'production') { logger_js.logger.debug(`Network request for ` + `'${getFriendlyURL_js.getFriendlyURL(request.url)}' returned a response with ` + `status '${fetchResponse.status}'.`); } for (const callback of this.iterateCallbacks('fetchDidSucceed')) { fetchResponse = await callback({ event, request: pluginFilteredRequest, response: fetchResponse }); } return fetchResponse; } catch (error) { { logger_js.logger.log(`Network request for ` + `'${getFriendlyURL_js.getFriendlyURL(request.url)}' threw an error.`, error); } // `originalRequest` will only exist if a `fetchDidFail` callback // is being used (see above). if (originalRequest) { await this.runCallbacks('fetchDidFail', { error: error, event, originalRequest: originalRequest.clone(), request: pluginFilteredRequest.clone() }); } throw error; } } /** * Calls `this.fetch()` and (in the background) runs `this.cachePut()` on * the response generated by `this.fetch()`. * * The call to `this.cachePut()` automatically invokes `this.waitUntil()`, * so you do not have to manually call `waitUntil()` on the event. * * @param {Request|string} input The request or URL to fetch and cache. * @return {Promise} */ async fetchAndCachePut(input) { const response = await this.fetch(input); const responseClone = response.clone(); void this.waitUntil(this.cachePut(input, responseClone)); return response; } /** * Matches a request from the cache (and invokes any applicable plugin * callback methods) using the `cacheName`, `matchOptions`, and `plugins` * defined on the strategy object. * * The following plugin lifecycle methods are invoked when using this method: * - cacheKeyWillBeUsed() * - cachedResponseWillBeUsed() * * @param {Request|string} key The Request or URL to use as the cache key. * @return {Promise} A matching response, if found. */ async cacheMatch(key) { const request = toRequest(key); let cachedResponse; const { cacheName, matchOptions } = this._strategy; const effectiveRequest = await this.getCacheKey(request, 'read'); const multiMatchOptions = Object.assign(Object.assign({}, matchOptions), { cacheName }); cachedResponse = await caches.match(effectiveRequest, multiMatchOptions); { if (cachedResponse) { logger_js.logger.debug(`Found a cached response in '${cacheName}'.`); } else { logger_js.logger.debug(`No cached response found in '${cacheName}'.`); } } for (const callback of this.iterateCallbacks('cachedResponseWillBeUsed')) { cachedResponse = (await callback({ cacheName, matchOptions, cachedResponse, request: effectiveRequest, event: this.event })) || undefined; } return cachedResponse; } /** * Puts a request/response pair in the cache (and invokes any applicable * plugin callback methods) using the `cacheName` and `plugins` defined on * the strategy object. * * The following plugin lifecycle methods are invoked when using this method: * - cacheKeyWillBeUsed() * - cacheWillUpdate() * - cacheDidUpdate() * * @param {Request|string} key The request or URL to use as the cache key. * @param {Response} response The response to cache. * @return {Promise} `false` if a cacheWillUpdate caused the response * not be cached, and `true` otherwise. */ async cachePut(key, response) { const request = toRequest(key); // Run in the next task to avoid blocking other cache reads. // https://github.com/w3c/ServiceWorker/issues/1397 await timeout_js.timeout(0); const effectiveRequest = await this.getCacheKey(request, 'write'); { if (effectiveRequest.method && effectiveRequest.method !== 'GET') { throw new WorkboxError_js.WorkboxError('attempt-to-cache-non-get-request', { url: getFriendlyURL_js.getFriendlyURL(effectiveRequest.url), method: effectiveRequest.method }); } // See https://github.com/GoogleChrome/workbox/issues/2818 const vary = response.headers.get('Vary'); if (vary) { logger_js.logger.debug(`The response for ${getFriendlyURL_js.getFriendlyURL(effectiveRequest.url)} ` + `has a 'Vary: ${vary}' header. ` + `Consider setting the {ignoreVary: true} option on your strategy ` + `to ensure cache matching and deletion works as expected.`); } } if (!response) { { logger_js.logger.error(`Cannot cache non-existent response for ` + `'${getFriendlyURL_js.getFriendlyURL(effectiveRequest.url)}'.`); } throw new WorkboxError_js.WorkboxError('cache-put-with-no-response', { url: getFriendlyURL_js.getFriendlyURL(effectiveRequest.url) }); } const responseToCache = await this._ensureResponseSafeToCache(response); if (!responseToCache) { { logger_js.logger.debug(`Response '${getFriendlyURL_js.getFriendlyURL(effectiveRequest.url)}' ` + `will not be cached.`, responseToCache); } return false; } const { cacheName, matchOptions } = this._strategy; const cache = await self.caches.open(cacheName); const hasCacheUpdateCallback = this.hasCallback('cacheDidUpdate'); const oldResponse = hasCacheUpdateCallback ? await cacheMatchIgnoreParams_js.cacheMatchIgnoreParams( // TODO(philipwalton): the `__WB_REVISION__` param is a precaching // feature. Consider into ways to only add this behavior if using // precaching. cache, effectiveRequest.clone(), ['__WB_REVISION__'], matchOptions) : null; { logger_js.logger.debug(`Updating the '${cacheName}' cache with a new Response ` + `for ${getFriendlyURL_js.getFriendlyURL(effectiveRequest.url)}.`); } try { await cache.put(effectiveRequest, hasCacheUpdateCallback ? responseToCache.clone() : responseToCache); } catch (error) { if (error instanceof Error) { // See https://developer.mozilla.org/en-US/docs/Web/API/DOMException#exception-QuotaExceededError if (error.name === 'QuotaExceededError') { await executeQuotaErrorCallbacks_js.executeQuotaErrorCallbacks(); } throw error; } } for (const callback of this.iterateCallbacks('cacheDidUpdate')) { await callback({ cacheName, oldResponse, newResponse: responseToCache.clone(), request: effectiveRequest, event: this.event }); } return true; } /** * Checks the list of plugins for the `cacheKeyWillBeUsed` callback, and * executes any of those callbacks found in sequence. The final `Request` * object returned by the last plugin is treated as the cache key for cache * reads and/or writes. If no `cacheKeyWillBeUsed` plugin callbacks have * been registered, the passed request is returned unmodified * * @param {Request} request * @param {string} mode * @return {Promise} */ async getCacheKey(request, mode) { const key = `${request.url} | ${mode}`; if (!this._cacheKeys[key]) { let effectiveRequest = request; for (const callback of this.iterateCallbacks('cacheKeyWillBeUsed')) { effectiveRequest = toRequest(await callback({ mode, request: effectiveRequest, event: this.event, // params has a type any can't change right now. params: this.params // eslint-disable-line })); } this._cacheKeys[key] = effectiveRequest; } return this._cacheKeys[key]; } /** * Returns true if the strategy has at least one plugin with the given * callback. * * @param {string} name The name of the callback to check for. * @return {boolean} */ hasCallback(name) { for (const plugin of this._strategy.plugins) { if (name in plugin) { return true; } } return false; } /** * Runs all plugin callbacks matching the given name, in order, passing the * given param object (merged ith the current plugin state) as the only * argument. * * Note: since this method runs all plugins, it's not suitable for cases * where the return value of a callback needs to be applied prior to calling * the next callback. See * {@link workbox-strategies.StrategyHandler#iterateCallbacks} * below for how to handle that case. * * @param {string} name The name of the callback to run within each plugin. * @param {Object} param The object to pass as the first (and only) param * when executing each callback. This object will be merged with the * current plugin state prior to callback execution. */ async runCallbacks(name, param) { for (const callback of this.iterateCallbacks(name)) { // TODO(philipwalton): not sure why `any` is needed. It seems like // this should work with `as WorkboxPluginCallbackParam[C]`. await callback(param); } } /** * Accepts a callback and returns an iterable of matching plugin callbacks, * where each callback is wrapped with the current handler state (i.e. when * you call each callback, whatever object parameter you pass it will * be merged with the plugin's current state). * * @param {string} name The name fo the callback to run * @return {Array} */ *iterateCallbacks(name) { for (const plugin of this._strategy.plugins) { if (typeof plugin[name] === 'function') { const state = this._pluginStateMap.get(plugin); const statefulCallback = param => { const statefulParam = Object.assign(Object.assign({}, param), { state }); // TODO(philipwalton): not sure why `any` is needed. It seems like // this should work with `as WorkboxPluginCallbackParam[C]`. return plugin[name](statefulParam); }; yield statefulCallback; } } } /** * Adds a promise to the * [extend lifetime promises]{@link https://w3c.github.io/ServiceWorker/#extendableevent-extend-lifetime-promises} * of the event event associated with the request being handled (usually a * `FetchEvent`). * * Note: you can await * {@link workbox-strategies.StrategyHandler~doneWaiting} * to know when all added promises have settled. * * @param {Promise} promise A promise to add to the extend lifetime promises * of the event that triggered the request. */ waitUntil(promise) { this._extendLifetimePromises.push(promise); return promise; } /** * Returns a promise that resolves once all promises passed to * {@link workbox-strategies.StrategyHandler~waitUntil} * have settled. * * Note: any work done after `doneWaiting()` settles should be manually * passed to an event's `waitUntil()` method (not this handler's * `waitUntil()` method), otherwise the service worker thread my be killed * prior to your work completing. */ async doneWaiting() { let promise; while (promise = this._extendLifetimePromises.shift()) { await promise; } } /** * Stops running the strategy and immediately resolves any pending * `waitUntil()` promises. */ destroy() { this._handlerDeferred.resolve(null); } /** * This method will call cacheWillUpdate on the available plugins (or use * status === 200) to determine if the Response is safe and valid to cache. * * @param {Request} options.request * @param {Response} options.response * @return {Promise} * * @private */ async _ensureResponseSafeToCache(response) { let responseToCache = response; let pluginsUsed = false; for (const callback of this.iterateCallbacks('cacheWillUpdate')) { responseToCache = (await callback({ request: this.request, response: responseToCache, event: this.event })) || undefined; pluginsUsed = true; if (!responseToCache) { break; } } if (!pluginsUsed) { if (responseToCache && responseToCache.status !== 200) { responseToCache = undefined; } { if (responseToCache) { if (responseToCache.status !== 200) { if (responseToCache.status === 0) { logger_js.logger.warn(`The response for '${this.request.url}' ` + `is an opaque response. The caching strategy that you're ` + `using will not cache opaque responses by default.`); } else { logger_js.logger.debug(`The response for '${this.request.url}' ` + `returned a status code of '${response.status}' and won't ` + `be cached as a result.`); } } } } } return responseToCache; } } /* Copyright 2020 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 abstract base class that all other strategy classes must extend from: * * @memberof workbox-strategies */ class Strategy { /** * Creates a new instance of the strategy and sets all documented option * properties as public instance properties. * * Note: if a custom strategy class extends the base Strategy class and does * not need more than these properties, it does not need to define its own * constructor. * * @param {Object} [options] * @param {string} [options.cacheName] Cache name to store and retrieve * requests. Defaults to the cache names provided by * {@link workbox-core.cacheNames}. * @param {Array} [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 [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796) * `fetch()` requests made by this strategy. * @param {Object} [options.matchOptions] The * [`CacheQueryOptions`]{@link https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions} * for any `cache.match()` or `cache.put()` calls made by this strategy. */ constructor(options = {}) { /** * Cache name to store and retrieve * requests. Defaults to the cache names provided by * {@link workbox-core.cacheNames}. * * @type {string} */ this.cacheName = cacheNames_js.cacheNames.getRuntimeName(options.cacheName); /** * The list * [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins} * used by this strategy. * * @type {Array} */ this.plugins = options.plugins || []; /** * Values passed along to the * [`init`]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters} * of all fetch() requests made by this strategy. * * @type {Object} */ this.fetchOptions = options.fetchOptions; /** * The * [`CacheQueryOptions`]{@link https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions} * for any `cache.match()` or `cache.put()` calls made by this strategy. * * @type {Object} */ this.matchOptions = options.matchOptions; } /** * Perform a request strategy and returns a `Promise` that will resolve with * a `Response`, invoking all relevant plugin callbacks. * * When a strategy instance is registered with a Workbox * {@link workbox-routing.Route}, this method is automatically * called when the route matches. * * Alternatively, this method can be used in a standalone `FetchEvent` * listener by passing it to `event.respondWith()`. * * @param {FetchEvent|Object} options A `FetchEvent` or an object with the * properties listed below. * @param {Request|string} options.request A request to run this strategy for. * @param {ExtendableEvent} options.event The event associated with the * request. * @param {URL} [options.url] * @param {*} [options.params] */ handle(options) { const [responseDone] = this.handleAll(options); return responseDone; } /** * Similar to {@link workbox-strategies.Strategy~handle}, but * instead of just returning a `Promise` that resolves to a `Response` it * it will return an tuple of `[response, done]` promises, where the former * (`response`) is equivalent to what `handle()` returns, and the latter is a * Promise that will resolve once any promises that were added to * `event.waitUntil()` as part of performing the strategy have completed. * * You can await the `done` promise to ensure any extra work performed by * the strategy (usually caching responses) completes successfully. * * @param {FetchEvent|Object} options A `FetchEvent` or an object with the * properties listed below. * @param {Request|string} options.request A request to run this strategy for. * @param {ExtendableEvent} options.event The event associated with the * request. * @param {URL} [options.url] * @param {*} [options.params] * @return {Array} A tuple of [response, done] * promises that can be used to determine when the response resolves as * well as when the handler has completed all its work. */ handleAll(options) { // Allow for flexible options to be passed. if (options instanceof FetchEvent) { options = { event: options, request: options.request }; } const event = options.event; const request = typeof options.request === 'string' ? new Request(options.request) : options.request; const params = 'params' in options ? options.params : undefined; const handler = new StrategyHandler(this, { event, request, params }); const responseDone = this._getResponse(handler, request, event); const handlerDone = this._awaitComplete(responseDone, handler, request, event); // Return an array of promises, suitable for use with Promise.all(). return [responseDone, handlerDone]; } async _getResponse(handler, request, event) { await handler.runCallbacks('handlerWillStart', { event, request }); let response = undefined; try { response = await this._handle(request, handler); // The "official" Strategy subclasses all throw this error automatically, // but in case a third-party Strategy doesn't, ensure that we have a // consistent failure when there's no response or an error response. if (!response || response.type === 'error') { throw new WorkboxError_js.WorkboxError('no-response', { url: request.url }); } } catch (error) { if (error instanceof Error) { for (const callback of handler.iterateCallbacks('handlerDidError')) { response = await callback({ error, event, request }); if (response) { break; } } } if (!response) { throw error; } else { logger_js.logger.log(`While responding to '${getFriendlyURL_js.getFriendlyURL(request.url)}', ` + `an ${error instanceof Error ? error.toString() : ''} error occurred. Using a fallback response provided by ` + `a handlerDidError plugin.`); } } for (const callback of handler.iterateCallbacks('handlerWillRespond')) { response = await callback({ event, request, response }); } return response; } async _awaitComplete(responseDone, handler, request, event) { let response; let error; try { response = await responseDone; } catch (error) { // Ignore errors, as response errors should be caught via the `response` // promise above. The `done` promise will only throw for errors in // promises passed to `handler.waitUntil()`. } try { await handler.runCallbacks('handlerDidRespond', { event, request, response }); await handler.doneWaiting(); } catch (waitUntilError) { if (waitUntilError instanceof Error) { error = waitUntilError; } } await handler.runCallbacks('handlerDidComplete', { event, request, response, error: error }); handler.destroy(); if (error) { throw error; } } } /** * Classes extending the `Strategy` based class should implement this method, * and leverage the {@link workbox-strategies.StrategyHandler} * arg to perform all fetching and cache logic, which will ensure all relevant * cache, cache options, fetch options and plugins are used (per the current * strategy instance). * * @name _handle * @instance * @abstract * @function * @param {Request} request * @param {workbox-strategies.StrategyHandler} handler * @return {Promise} * * @memberof workbox-strategies.Strategy */ /* 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](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#cache-first-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. * * @extends workbox-strategies.Strategy * @memberof workbox-strategies */ class CacheFirst extends Strategy { /** * @private * @param {Request|string} request A request to run this strategy for. * @param {workbox-strategies.StrategyHandler} handler The event that * triggered the request. * @return {Promise} */ async _handle(request, handler) { const logs = []; { assert_js.assert.isInstance(request, Request, { moduleName: 'workbox-strategies', className: this.constructor.name, funcName: 'makeRequest', paramName: 'request' }); } let response = await handler.cacheMatch(request); let error = undefined; if (!response) { { logs.push(`No response found in the '${this.cacheName}' cache. ` + `Will respond with a network request.`); } try { response = await handler.fetchAndCachePut(request); } catch (err) { if (err instanceof Error) { error = err; } } { if (response) { logs.push(`Got response from network.`); } else { logs.push(`Unable to get a response from the network.`); } } } else { { logs.push(`Found a cached response in the '${this.cacheName}' cache.`); } } { logger_js.logger.groupCollapsed(messages.strategyStart(this.constructor.name, 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; } } /* 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](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#cache-only) * request strategy. * * This class is useful if you want to take advantage of any * [Workbox plugins](https://developer.chrome.com/docs/workbox/using-plugins/). * * If there is no cache match, this will throw a `WorkboxError` exception. * * @extends workbox-strategies.Strategy * @memberof workbox-strategies */ class CacheOnly extends Strategy { /** * @private * @param {Request|string} request A request to run this strategy for. * @param {workbox-strategies.StrategyHandler} handler The event that * triggered the request. * @return {Promise} */ async _handle(request, handler) { { assert_js.assert.isInstance(request, Request, { moduleName: 'workbox-strategies', className: this.constructor.name, funcName: 'makeRequest', paramName: 'request' }); } const response = await handler.cacheMatch(request); { logger_js.logger.groupCollapsed(messages.strategyStart(this.constructor.name, 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](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#network-first-falling-back-to-cache) * request strategy. * * By default, this strategy will cache responses with a 200 status code as * well as [opaque responses](https://developer.chrome.com/docs/workbox/caching-resources-during-runtime/#opaque-responses). * Opaque responses are are cross-origin requests where the response doesn't * support [CORS](https://enable-cors.org/). * * If the network request fails, and there is no cache match, this will throw * a `WorkboxError` exception. * * @extends workbox-strategies.Strategy * @memberof workbox-strategies */ class NetworkFirst extends Strategy { /** * @param {Object} [options] * @param {string} [options.cacheName] Cache name to store and retrieve * requests. Defaults to cache names provided by * {@link workbox-core.cacheNames}. * @param {Array} [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 [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796) * `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 = {}) { super(options); // If this instance contains no plugins with a 'cacheWillUpdate' callback, // prepend the `cacheOkAndOpaquePlugin` plugin to the plugins list. if (!this.plugins.some(p => 'cacheWillUpdate' in p)) { this.plugins.unshift(cacheOkAndOpaquePlugin); } this._networkTimeoutSeconds = options.networkTimeoutSeconds || 0; { if (this._networkTimeoutSeconds) { assert_js.assert.isType(this._networkTimeoutSeconds, 'number', { moduleName: 'workbox-strategies', className: this.constructor.name, funcName: 'constructor', paramName: 'networkTimeoutSeconds' }); } } } /** * @private * @param {Request|string} request A request to run this strategy for. * @param {workbox-strategies.StrategyHandler} handler The event that * triggered the request. * @return {Promise} */ async _handle(request, handler) { const logs = []; { assert_js.assert.isInstance(request, Request, { moduleName: 'workbox-strategies', className: this.constructor.name, funcName: 'handle', paramName: 'makeRequest' }); } const promises = []; let timeoutId; if (this._networkTimeoutSeconds) { const { id, promise } = this._getTimeoutPromise({ request, logs, handler }); timeoutId = id; promises.push(promise); } const networkPromise = this._getNetworkPromise({ timeoutId, request, logs, handler }); promises.push(networkPromise); const response = await handler.waitUntil((async () => { // Promise.race() will resolve as soon as the first promise resolves. return (await handler.waitUntil(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". await networkPromise); })()); { logger_js.logger.groupCollapsed(messages.strategyStart(this.constructor.name, 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} * * @private */ _getTimeoutPromise({ request, logs, handler }) { let timeoutId; const timeoutPromise = new Promise(resolve => { const onNetworkTimeout = async () => { { logs.push(`Timing out the network response at ` + `${this._networkTimeoutSeconds} seconds.`); } resolve(await handler.cacheMatch(request)); }; timeoutId = setTimeout(onNetworkTimeout, this._networkTimeoutSeconds * 1000); }); return { promise: timeoutPromise, id: timeoutId }; } /** * @param {Object} options * @param {number|undefined} options.timeoutId * @param {Request} options.request * @param {Array} options.logs A reference to the logs Array. * @param {Event} options.event * @return {Promise} * * @private */ async _getNetworkPromise({ timeoutId, request, logs, handler }) { let error; let response; try { response = await handler.fetchAndCachePut(request); } catch (fetchError) { if (fetchError instanceof Error) { error = fetchError; } } if (timeoutId) { clearTimeout(timeoutId); } { if (response) { logs.push(`Got response from network.`); } else { logs.push(`Unable to get a response from the network. Will respond ` + `with a cached response.`); } } if (error || !response) { response = await handler.cacheMatch(request); { if (response) { logs.push(`Found a cached response in the '${this.cacheName}'` + ` cache.`); } else { logs.push(`No response found in the '${this.cacheName}' cache.`); } } } 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 * [network-only](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#network-only) * request strategy. * * This class is useful if you want to take advantage of any * [Workbox plugins](https://developer.chrome.com/docs/workbox/using-plugins/). * * If the network request fails, this will throw a `WorkboxError` exception. * * @extends workbox-strategies.Strategy * @memberof workbox-strategies */ class NetworkOnly extends Strategy { /** * @param {Object} [options] * @param {Array} [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 [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796) * `fetch()` requests made by this strategy. * @param {number} [options.networkTimeoutSeconds] If set, any network requests * that fail to respond within the timeout will result in a network error. */ constructor(options = {}) { super(options); this._networkTimeoutSeconds = options.networkTimeoutSeconds || 0; } /** * @private * @param {Request|string} request A request to run this strategy for. * @param {workbox-strategies.StrategyHandler} handler The event that * triggered the request. * @return {Promise} */ async _handle(request, handler) { { assert_js.assert.isInstance(request, Request, { moduleName: 'workbox-strategies', className: this.constructor.name, funcName: '_handle', paramName: 'request' }); } let error = undefined; let response; try { const promises = [handler.fetch(request)]; if (this._networkTimeoutSeconds) { const timeoutPromise = timeout_js.timeout(this._networkTimeoutSeconds * 1000); promises.push(timeoutPromise); } response = await Promise.race(promises); if (!response) { throw new Error(`Timed out the network response after ` + `${this._networkTimeoutSeconds} seconds.`); } } catch (err) { if (err instanceof Error) { error = err; } } { logger_js.logger.groupCollapsed(messages.strategyStart(this.constructor.name, 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](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#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](https://developer.chrome.com/docs/workbox/caching-resources-during-runtime/#opaque-responses). * Opaque responses are cross-origin requests where the response doesn't * support [CORS](https://enable-cors.org/). * * If the network request fails, and there is no cache match, this will throw * a `WorkboxError` exception. * * @extends workbox-strategies.Strategy * @memberof workbox-strategies */ class StaleWhileRevalidate extends Strategy { /** * @param {Object} [options] * @param {string} [options.cacheName] Cache name to store and retrieve * requests. Defaults to cache names provided by * {@link workbox-core.cacheNames}. * @param {Array} [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 [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796) * `fetch()` requests made by this strategy. * @param {Object} [options.matchOptions] [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions) */ constructor(options = {}) { super(options); // If this instance contains no plugins with a 'cacheWillUpdate' callback, // prepend the `cacheOkAndOpaquePlugin` plugin to the plugins list. if (!this.plugins.some(p => 'cacheWillUpdate' in p)) { this.plugins.unshift(cacheOkAndOpaquePlugin); } } /** * @private * @param {Request|string} request A request to run this strategy for. * @param {workbox-strategies.StrategyHandler} handler The event that * triggered the request. * @return {Promise} */ async _handle(request, handler) { const logs = []; { assert_js.assert.isInstance(request, Request, { moduleName: 'workbox-strategies', className: this.constructor.name, funcName: 'handle', paramName: 'request' }); } const fetchAndCachePromise = handler.fetchAndCachePut(request).catch(() => { // Swallow this error because a 'no-response' error will be thrown in // main handler return flow. This will be in the `waitUntil()` flow. }); void handler.waitUntil(fetchAndCachePromise); let response = await handler.cacheMatch(request); let error; if (response) { { logs.push(`Found a cached response in the '${this.cacheName}'` + ` cache. Will update with the network response in the background.`); } } else { { logs.push(`No response found in the '${this.cacheName}' cache. ` + `Will wait for the network response.`); } try { // NOTE(philipwalton): Really annoying that we have to type cast here. // https://github.com/microsoft/TypeScript/issues/20006 response = await fetchAndCachePromise; } catch (err) { if (err instanceof Error) { error = err; } } } { logger_js.logger.groupCollapsed(messages.strategyStart(this.constructor.name, 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; } } exports.CacheFirst = CacheFirst; exports.CacheOnly = CacheOnly; exports.NetworkFirst = NetworkFirst; exports.NetworkOnly = NetworkOnly; exports.StaleWhileRevalidate = StaleWhileRevalidate; exports.Strategy = Strategy; exports.StrategyHandler = StrategyHandler; return exports; })({}, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private, workbox.core._private); //# sourceMappingURL=workbox-strategies.dev.js.map

È avvenuto un nuovo pagamento da parte di un utente su !!sitename!!.

L'opzione di pagamento scelta è stata l'assegno.

Sottostante puoi trovare le informazioni della sottoscrizione e la ricevuta della fattura per la sottoscrizione.

Account: !!display_name!! (!!user_email!!)

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Unveiling GrandClub: A Deep Dive into an International Online Gaming Gem - Schreibcoaching Anke Fröchling

Unveiling GrandClub: A Deep Dive into an International Online Gaming Gem

Embarking on the Digital Casino Frontier

The international online gambling landscape is in constant flux, characterized by rapid technological advancements and an ever-growing appetite for immersive entertainment. Players worldwide are seeking platforms that offer not only a vast array of games but also seamless user experiences, robust security, and generous incentives. The convenience of accessing thrilling casino action from any location, at any time, has propelled the industry to unprecedented heights. Amidst this dynamic environment, discerning players are on the lookout for reputable destinations that truly stand out from the crowd, providing a blend of classic charm and cutting-edge innovation.

This is precisely where https://grandclubcasino.net emerges as a compelling contender, aiming to capture the attention of a global audience. Our in-depth review will meticulously explore what GrandClub brings to the table, scrutinizing its offerings, user interface, and overall player proposition. We aim to equip you with the comprehensive insights needed to determine if this online casino aligns with your gaming preferences and expectations, separating the truly exceptional from the merely adequate in the competitive international iGaming market.

Get ready to discover the multifaceted world of GrandClub, from its initial appeal to its more intricate features, providing a balanced perspective on its strengths and potential areas for consideration. This comprehensive analysis is designed to guide your exploration and decision-making process as you navigate the exciting realm of online casino entertainment.

First Impressions and the Journey to Account Creation

Upon landing on the GrandClub website, visitors are immediately greeted by a modern and aesthetically pleasing interface. The design is clean and intuitive, avoiding the cluttered feel that can plague some online casinos, which is a significant plus for new users. The color scheme is sophisticated, and navigation is straightforward, allowing players to easily locate different game categories, promotional offers, and essential information. This initial visual appeal creates a sense of professionalism and trustworthiness, setting a positive tone for the gaming experience ahead.

The registration process at GrandClub is designed to be as efficient as possible, recognizing that players want to start playing without unnecessary delays. Typically, this involves a few simple steps requiring basic personal information and account verification. The platform emphasizes a quick onboarding experience, ensuring that the transition from a curious visitor to an active player is smooth and hassle-free, a crucial element for retaining player interest from the very outset.

Top 5 Standout Features of GrandClub

  1. Extensive Game Library — GrandClub boasts an impressively diverse collection of casino games, catering to a wide spectrum of player preferences. From the latest high-volatility video slots with innovative bonus features to classic table games like blackjack and roulette, there’s something to suit every taste and skill level, ensuring endless entertainment possibilities.
  2. Mobile Compatibility — GrandClub understands the importance of on-the-go gaming, offering a fully optimized mobile experience. Whether through a dedicated app or a responsive web design, players can access their favorite games, manage their accounts, and claim bonuses seamlessly from their smartphones and tablets, providing ultimate flexibility.
  3. Generous Welcome Package — New players are often greeted with a lucrative welcome bonus designed to boost their initial bankroll and extend their playing time. This introductory offer can significantly enhance the early gaming experience, allowing players to explore more games and potentially achieve wins right from the start of their journey.
  4. Immersive Live Casino Section — For those seeking the authentic thrill of a brick-and-mortar casino, GrandClub’s live dealer section is a true highlight. Featuring real dealers and interactive gameplay streamed in high definition, players can engage in live blackjack, roulette, baccarat, and poker, bringing the excitement of a real casino directly to their screens.
  5. User-Friendly Interface and Navigation — The platform’s design prioritizes ease of use, with intuitive menus and clear categorization of games. This ensures that players can effortlessly find their favorite titles or discover new ones without feeling overwhelmed, contributing to a relaxed and enjoyable gaming session.

Platform Overview: A Snapshot of GrandClub’s Offerings

Feature Details
Live Casino Extensive selection of live dealer games including Blackjack, Roulette, Baccarat, Poker variations.
Year Founded (Information typically available in terms or about us section)
License International Licensing (Specific details usually found in footer)
Welcome Bonus Typically a match bonus on first deposit(s), often with free spins included.
Mobile App Responsive website design ensuring full mobile functionality; dedicated app may be available.
Minimum Deposit Varies by payment method (often starting from €10 or equivalent)
Sports Markets (This review focuses on casino, sports betting may or may not be offered)
Withdrawal Time Processing times can range from instant to 5 business days, depending on method and verification status.
Payment Methods A broad range of options including credit/debit cards, e-wallets, bank transfers, and cryptocurrencies.

Upholding Player Safety and Promoting Responsible Gambling

GrandClub places a significant emphasis on player safety and the promotion of responsible gambling practices, which are paramount in the online entertainment industry. The platform employs robust security measures, including advanced encryption technology, to safeguard player data and financial transactions, ensuring a secure environment for all users. This commitment to security provides players with the peace of mind necessary to enjoy their gaming sessions without undue concern.

Furthermore, GrandClub offers a suite of tools and resources designed to support responsible gaming. These may include options for setting deposit limits, self-exclusion periods, and reality checks, empowering players to maintain control over their gambling habits. The casino also provides links to professional organizations that offer support and guidance for individuals experiencing gambling-related issues, demonstrating a clear dedication to player well-being, as also noted in various Wikipedia notes regarding the nature of casinos and their societal impact.

The Thrill of the Casino Gaming Experience

online casino roulette table game
An immersive view of a digital roulette wheel, a staple of online casino entertainment.

GrandClub truly shines when it comes to its diverse and engaging casino gaming portfolio. The slots section is particularly impressive, featuring a multitude of themes, from ancient mythology and thrilling adventures to vibrant fruit machines and sophisticated video slots with complex bonus rounds. Players can explore titles from industry-leading providers, ensuring access to high-quality graphics, engaging sound effects, and fair play certified random number generators, making every spin a potential adventure.

Beyond the reels, the table games section offers a robust selection of classics and their modern variations. Whether you’re a fan of strategic blackjack, the timeless allure of roulette, the fast-paced action of baccarat, or the cerebral challenge of poker, GrandClub provides numerous options to satisfy your cravings. Each game is presented with crisp visuals and smooth gameplay, replicating the feel of a physical casino environment with remarkable fidelity, ensuring an enjoyable experience for both casual players and seasoned enthusiasts.

The live casino further elevates the gaming experience, offering an unparalleled level of immersion. With professional dealers hosting games in real-time, players can interact with the dealer and fellow players, fostering a social atmosphere that is often missed in traditional online gaming. The high-definition streaming and intuitive interfaces ensure that every hand dealt and every spin of the wheel feels authentic, bridging the gap between online convenience and the tangible excitement of a live casino floor.

Final Verdict: Is GrandClub Your Next Gaming Destination?

In conclusion, GrandClub presents a compelling proposition for international online casino enthusiasts seeking a comprehensive and engaging gaming platform. Its vast game selection, coupled with a user-friendly interface and attractive promotional offers, creates a welcoming environment for both new and experienced players. The dedication to security and responsible gambling further solidifies its standing as a trustworthy and player-centric destination in the competitive iGaming market.

The platform’s ability to deliver an immersive experience, particularly through its live casino and mobile compatibility, ensures that players can enjoy high-quality entertainment wherever and whenever they choose. While individual preferences vary, GrandClub demonstrates a strong commitment to meeting the diverse needs of its global player base, making it a solid contender for anyone looking for a reliable and exciting online casino experience.

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