{“version”:3,“file”:“workbox-routing.prod.js”,“sources”:,“sourcesContent”:[“"use strict";n// @ts-ignorentry {n self && _();n}ncatch (e) { }n”,“/*n Copyright 2018 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport '../_version.js';n/**n * The default HTTP method, 'GET', used when there's no specific methodn * configured for a route.n *n * @type {string}n *n * @privaten */nexport const defaultMethod = 'GET';n/**n * The list of valid HTTP methods associated with requests that could be routed.n *n * @type {Array<string>}n *n * @privaten */nexport const validMethods = [n 'DELETE',n 'GET',n 'HEAD',n 'PATCH',n 'POST',n 'PUT',n];n”,“/*n Copyright 2018 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { assert } from 'workbox-core/_private/assert.js';nimport '../_version.js';n/**n * @param {function()|Object} handler Either a function, or an object with an * 'handle' method.n * @return {Object} An object with a handle method.n *n * @privaten */nexport const normalizeHandler = (handler) => {n if (handler && typeof handler === 'object') {n if (process.env.NODE_ENV !== 'production') {n assert.hasMethod(handler, 'handle', {n moduleName: 'workbox-routing',n className: 'Route',n funcName: 'constructor',n paramName: 'handler',n });n }n return handler;n }n else {n if (process.env.NODE_ENV !== 'production') {n assert.isType(handler, 'function', {n moduleName: 'workbox-routing',n className: 'Route',n funcName: 'constructor',n paramName: 'handler',n });n }n return { handle: handler };n }n};n”,“/*n Copyright 2018 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { assert } from 'workbox-core/_private/assert.js';nimport { defaultMethod, validMethods } from './utils/constants.js';nimport { normalizeHandler } from './utils/normalizeHandler.js';nimport './_version.js';n/**n * A `Route` consists of a pair of callback functions, "match" and "handler".n * The "match" callback determine if a route should be used to "handle" an * request by returning a non-falsy value if it can. The "handler" callbackn * is called when there is a match and should return a Promise that resolvesn * to a `Response`.n *n * @memberof module:workbox-routingn */nclass Route {n /**n * Constructor for Route class.n *n * @param {module:workbox-routing~matchCallback} matchn * A callback function that determines whether the route matches a givenn * `fetch` event by returning a non-falsy value.n * @param {module:workbox-routing~handlerCallback} handler A callbackn * function that returns a Promise resolving to a Response.n * @param {string} [method='GET'] The HTTP method to match the Routen * against.n */n constructor(match, handler, method = defaultMethod) {n if (process.env.NODE_ENV !== 'production') {n assert.isType(match, 'function', {n moduleName: 'workbox-routing',n className: 'Route',n funcName: 'constructor',n paramName: 'match',n });n if (method) {n assert.isOneOf(method, validMethods, { paramName: 'method' });n }n }n // These values are referenced directly by Router so cannot ben // altered by minificaton.n this.handler = normalizeHandler(handler);n this.match = match;n this.method = method;n }n}nexport { Route };n”,“/*n Copyright 2018 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { assert } from 'workbox-core/_private/assert.js';nimport { logger } from 'workbox-core/_private/logger.js';nimport { Route } from './Route.js';nimport './_version.js';n/**n * RegExpRoute makes it easy to create a regular expression basedn * [Route]{@link module:workbox-routing.Route}.n *n * For same-origin requests the RegExp only needs to match part of the URL. Forn * requests against third-party servers, you must define a RegExp that matchesn * the start of the URL.n *n * [See the module docs for info.]{@link developers.google.com/web/tools/workbox/modules/workbox-routing}n *n * @memberof module:workbox-routingn * @extends module:workbox-routing.Routen */nclass RegExpRoute extends Route {n /**n * If the regular expression containsn * [capture groups]{@link developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#grouping-back-references},n * the captured values will be passed to then * [handler's]{@link module:workbox-routing~handlerCallback} `params`n * argument.n *n * @param {RegExp} regExp The regular expression to match against URLs.n * @param {module:workbox-routing~handlerCallback} handler A callbackn * function that returns a Promise resulting in a Response.n * @param {string} [method='GET'] The HTTP method to match the Routen * against.n */n constructor(regExp, handler, method) {n if (process.env.NODE_ENV !== 'production') {n assert.isInstance(regExp, RegExp, {n moduleName: 'workbox-routing',n className: 'RegExpRoute',n funcName: 'constructor',n paramName: 'pattern',n });n }n const match = ({ url }) => {n const result = regExp.exec(url.href);n // Return immediately if there's no match.n if (!result) {n return;n }n // Require that the match start at the first character in the URL stringn // if it's a cross-origin request.n // See github.com/GoogleChrome/workbox/issues/281 for the contextn // behind this behavior.n if ((url.origin !== location.origin) && (result.index !== 0)) {n if (process.env.NODE_ENV !== 'production') {n logger.debug(`The regular expression '${regExp}' only partially matched ` +n `against the cross-origin URL '${url}'. RegExpRoute's will only ` +n `handle cross-origin requests if they match the entire URL.`);n }n return;n }n // If the route matches, but there aren't any capture groups defined, thenn // this will return [], which is truthy and therefore sufficient ton // indicate a match.n // If there are capture groups, then it will return their values.n return result.slice(1);n };n super(match, handler, method);n }n}nexport { RegExpRoute };n”,“/*n Copyright 2018 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { assert } from 'workbox-core/_private/assert.js';nimport { logger } from 'workbox-core/_private/logger.js';nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';nimport { getFriendlyURL } from 'workbox-core/_private/getFriendlyURL.js';nimport { normalizeHandler } from './utils/normalizeHandler.js';nimport './_version.js';n/**n * The Router can be used to process a FetchEvent through one or moren * [Routes]{@link module:workbox-routing.Route} responding with a Request ifn * a matching route exists.n *n * If no route matches a given a request, the Router will use a "default"n * handler if one is defined.n *n * Should the matching Route throw an error, the Router will use a "catch"n * handler if one is defined to gracefully deal with issues and respond with an * Request.n *n * If a request matches multiple routes, the earliest registered route willn * be used to respond to the request.n *n * @memberof module:workbox-routingn */nclass Router {n /**n * Initializes a new Router.n */n constructor() {n this._routes = new Map();n }n /**n * @return {Map<string, Array<module:workbox-routing.Route>>} routes A `Map` of HTTPn * method name ('GET', etc.) to an array of all the corresponding `Route`n * instances that are registered.n */n get routes() {n return this._routes;n }n /**n * Adds a fetch event listener to respond to events when a route matchesn * the event's request.n */n addFetchListener() {n // See github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705n self.addEventListener('fetch', ((event) => {n const { request } = event;n const responsePromise = this.handleRequest({ request, event });n if (responsePromise) {n event.respondWith(responsePromise);n }n }));n }n /**n * Adds a message event listener for URLs to cache from the window.n * This is useful to cache resources loaded on the page prior to when then * service worker started controlling it.n *n * The format of the message data sent from the window should be as follows.n * Where the `urlsToCache` array may consist of URL strings or an array ofn * URL string + `requestInit` object (the same as you'd pass to `fetch()`).n *n * “`n * {n * type: 'CACHE_URLS',n * payload: {n * urlsToCache: [n * './script1.js',n * './script2.js',n * ['./script3.js', {mode: 'no-cors'}],n * ],n * },n * }n * “`n */n addCacheListener() {n // See github.com/Microsoft/TypeScript/issues/28357#issuecomment-436484705n self.addEventListener('message', ((event) => {n if (event.data && event.data.type === 'CACHE_URLS') {n const { payload } = event.data;n if (process.env.NODE_ENV !== 'production') {n logger.debug(`Caching URLs from the window`, payload.urlsToCache);n }n const requestPromises = Promise.all(payload.urlsToCache.map((entry) => {n if (typeof entry === 'string') {n entry = [entry];n }n const request = new Request(…entry);n return this.handleRequest({ request });n // TODO(philipwalton): TypeScript errors without this typecast forn // some reason (probably a bug). The real type here should work butn // doesn't: `Array<Promise<Response> | undefined>`.n })); // TypeScriptn event.waitUntil(requestPromises);n // If a MessageChannel was used, reply to the message on success.n if (event.ports && event.ports) {n requestPromises.then(() => event.ports.postMessage(true));n }n }n }));n }n /**n * Apply the routing rules to a FetchEvent object to get a Response from ann * appropriate Route's handler.n *n * @param {Object} optionsn * @param {Request} options.request The request to handle (this is usuallyn * from a fetch event, but it does not have to be).n * @param {FetchEvent} [options.event] The event that triggered the request,n * if applicable.n * @return {Promise<Response>|undefined} A promise is returned if an * registered route can handle the request. If there is no matchingn * route and there's no `defaultHandler`, `undefined` is returned.n */n handleRequest({ request, event }) {n if (process.env.NODE_ENV !== 'production') {n assert.isInstance(request, Request, {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'handleRequest',n paramName: 'options.request',n });n }n const url = new URL(request.url, location.href);n if (!url.protocol.startsWith('http')) {n if (process.env.NODE_ENV !== 'production') {n logger.debug(`Workbox Router only supports URLs that start with 'http'.`);n }n return;n }n const { params, route } = this.findMatchingRoute({ url, request, event });n let handler = route && route.handler;n const debugMessages = [];n if (process.env.NODE_ENV !== 'production') {n if (handler) {n debugMessages.push([n `Found a route to handle this request:`, route,n ]);n if (params) {n debugMessages.push([n `Passing the following params to the route's handler:`, params,n ]);n }n }n }n // If we don't have a handler because there was no matching route, thenn // fall back to defaultHandler if that's defined.n if (!handler && this._defaultHandler) {n if (process.env.NODE_ENV !== 'production') {n debugMessages.push(`Failed to find a matching route. Falling ` +n `back to the default handler.`);n }n handler = this._defaultHandler;n }n if (!handler) {n if (process.env.NODE_ENV !== 'production') {n // No handler so Workbox will do nothing. If logs is set of debugn // i.e. verbose, we should print out this information.n logger.debug(`No route found for: ${getFriendlyURL(url)}`);n }n return;n }n if (process.env.NODE_ENV !== 'production') {n // We have a handler, meaning Workbox is going to handle the route.n // print the routing details to the console.n logger.groupCollapsed(`Router is responding to: ${getFriendlyURL(url)}`);n debugMessages.forEach((msg) => {n if (Array.isArray(msg)) {n logger.log(…msg);n }n else {n logger.log(msg);n }n });n logger.groupEnd();n }n // Wrap in try and catch in case the handle method throws a synchronousn // error. It should still callback to the catch handler.n let responsePromise;n try {n responsePromise = handler.handle({ url, request, event, params });n }n catch (err) {n responsePromise = Promise.reject(err);n }n if (responsePromise instanceof Promise && this._catchHandler) {n responsePromise = responsePromise.catch((err) => {n if (process.env.NODE_ENV !== 'production') {n // Still include URL here as it will be async from the console groupn // and may not make sense without the URLn logger.groupCollapsed(`Error thrown when responding to: ` +n ` ${getFriendlyURL(url)}. Falling back to Catch Handler.`);n logger.error(`Error thrown by:`, route);n logger.error(err);n logger.groupEnd();n }n return this._catchHandler.handle({ url, request, event });n });n }n return responsePromise;n }n /**n * Checks a request and URL (and optionally an event) against the list ofn * registered routes, and if there's a match, returns the correspondingn * route along with any params generated by the match.n *n * @param {Object} optionsn * @param {URL} options.urln * @param {Request} options.request The request to match.n * @param {Event} [options.event] The corresponding event (unless N/A).n * @return {Object} An object with `route` and `params` properties.n * They are populated if a matching route was found or `undefined`n * otherwise.n */n findMatchingRoute({ url, request, event }) {n if (process.env.NODE_ENV !== 'production') {n assert.isInstance(url, URL, {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'findMatchingRoute',n paramName: 'options.url',n });n assert.isInstance(request, Request, {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'findMatchingRoute',n paramName: 'options.request',n });n }n const routes = this._routes.get(request.method) || [];n for (const route of routes) {n let params;n const matchResult = route.match({ url, request, event });n if (matchResult) {n // See github.com/GoogleChrome/workbox/issues/2079n params = matchResult;n if (Array.isArray(matchResult) && matchResult.length === 0) {n // Instead of passing an empty array in as params, use undefined.n params = undefined;n }n else if ((matchResult.constructor === Object &&n Object.keys(matchResult).length === 0)) {n // Instead of passing an empty object in as params, use undefined.n params = undefined;n }n else if (typeof matchResult === 'boolean') {n // For the boolean value true (rather than just something truth-y),n // don't set params.n // See github.com/GoogleChrome/workbox/pull/2134#issuecomment-513924353n params = undefined;n }n // Return early if have a match.n return { route, params };n }n }n // If no match was found above, return and empty object.n return {};n }n /**n * Define a default `handler` that's called when no routes explicitlyn * match the incoming request.n *n * Without a default handler, unmatched requests will go against then * network as if there were no service worker present.n *n * @param {module:workbox-routing~handlerCallback} handler A callbackn * function that returns a Promise resulting in a Response.n */n setDefaultHandler(handler) {n this._defaultHandler = normalizeHandler(handler);n }n /**n * If a Route throws an error while handling a request, this `handler`n * will be called and given a chance to provide a response.n *n * @param {module:workbox-routing~handlerCallback} handler A callbackn * function that returns a Promise resulting in a Response.n */n setCatchHandler(handler) {n this._catchHandler = normalizeHandler(handler);n }n /**n * Registers a route with the router.n *n * @param {module:workbox-routing.Route} route The route to register.n */n registerRoute(route) {n if (process.env.NODE_ENV !== 'production') {n assert.isType(route, 'object', {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'registerRoute',n paramName: 'route',n });n assert.hasMethod(route, 'match', {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'registerRoute',n paramName: 'route',n });n assert.isType(route.handler, 'object', {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'registerRoute',n paramName: 'route',n });n assert.hasMethod(route.handler, 'handle', {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'registerRoute',n paramName: 'route.handler',n });n assert.isType(route.method, 'string', {n moduleName: 'workbox-routing',n className: 'Router',n funcName: 'registerRoute',n paramName: 'route.method',n });n }n if (!this._routes.has(route.method)) {n this._routes.set(route.method, []);n }n // Give precedence to all of the earlier routes by adding this additionaln // route to the end of the array.n this._routes.get(route.method).push(route);n }n /**n * Unregisters a route with the router.n *n * @param {module:workbox-routing.Route} route The route to unregister.n */n unregisterRoute(route) {n if (!this._routes.has(route.method)) {n throw new WorkboxError('unregister-route-but-not-found-with-method', {n method: route.method,n });n }n const routeIndex = this._routes.get(route.method).indexOf(route);n if (routeIndex > -1) {n this._routes.get(route.method).splice(routeIndex, 1);n }n else {n throw new WorkboxError('unregister-route-route-not-registered');n }n }n}nexport { Router };n”,“/*n Copyright 2019 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { Router } from '../Router.js';nimport '../_version.js';nlet defaultRouter;n/**n * Creates a new, singleton Router instance if one does not exist. If onen * does already exist, that instance is returned.n *n * @privaten * @return {Router}n */nexport const getOrCreateDefaultRouter = () => {n if (!defaultRouter) {n defaultRouter = new Router();n // The helpers that use the default Router assume these listeners exist.n defaultRouter.addFetchListener();n defaultRouter.addCacheListener();n }n return defaultRouter;n};n”,“/*n Copyright 2018 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { assert } from 'workbox-core/_private/assert.js';nimport { logger } from 'workbox-core/_private/logger.js';nimport { Route } from './Route.js';nimport './_version.js';n/**n * NavigationRoute makes it easy to create an * [Route]{@link module:workbox-routing.Route} that matches for browsern * [navigation requests]{@link developers.google.com/web/fundamentals/primers/service-workers/high-performance-loading#first_what_are_navigation_requests}.n *n * It will only match incoming Requests whosen * [`mode`]{@link fetch.spec.whatwg.org/#concept-request-mode}n * is set to `navigate`.n *n * You can optionally only apply this route to a subset of navigation requestsn * by using one or both of the `denylist` and `allowlist` parameters.n *n * @memberof module:workbox-routingn * @extends module:workbox-routing.Routen */nclass NavigationRoute extends Route {n /**n * If both `denylist` and `allowlist` are provided, the `denylist` willn * take precedence and the request will not match this route.n *n * The regular expressions in `allowlist` and `denylist`n * are matched against the concatenatedn * [`pathname`]{@link developer.mozilla.org/en-US/docs/Web/API/HTMLHyperlinkElementUtils/pathname}n * and [`search`]{@link developer.mozilla.org/en-US/docs/Web/API/HTMLHyperlinkElementUtils/search}n * portions of the requested URL.n *n * @param {module:workbox-routing~handlerCallback} handler A callbackn * function that returns a Promise resulting in a Response.n * @param {Object} optionsn * @param {Array<RegExp>} [options.denylist] If any of these patterns match,n * the route will not handle the request (even if a allowlist RegExp matches).n * @param {Array<RegExp>} [options.allowlist=] If any of these patternsn * match the URL's pathname and search parameter, the route will handle then * request (assuming the denylist doesn't match).n */n constructor(handler, { allowlist = [/./], denylist = [] } = {}) {n if (process.env.NODE_ENV !== 'production') {n assert.isArrayOfClass(allowlist, RegExp, {n moduleName: 'workbox-routing',n className: 'NavigationRoute',n funcName: 'constructor',n paramName: 'options.allowlist',n });n assert.isArrayOfClass(denylist, RegExp, {n moduleName: 'workbox-routing',n className: 'NavigationRoute',n funcName: 'constructor',n paramName: 'options.denylist',n });n }n super((options) => this._match(options), handler);n this._allowlist = allowlist;n this._denylist = denylist;n }n /**n * Routes match handler.n *n * @param {Object} optionsn * @param {URL} options.urln * @param {Request} options.requestn * @return {boolean}n *n * @privaten */n _match({ url, request }) {n if (request && request.mode !== 'navigate') {n return false;n }n const pathnameAndSearch = url.pathname + url.search;n for (const regExp of this._denylist) {n if (regExp.test(pathnameAndSearch)) {n if (process.env.NODE_ENV !== 'production') {n logger.log(`The navigation route ${pathnameAndSearch} is not ` +n `being used, since the URL matches this denylist pattern: ` +n `${regExp}`);n }n return false;n }n }n if (this._allowlist.some((regExp) => regExp.test(pathnameAndSearch))) {n if (process.env.NODE_ENV !== 'production') {n logger.debug(`The navigation route ${pathnameAndSearch} ` +n `is being used.`);n }n return true;n }n if (process.env.NODE_ENV !== 'production') {n logger.log(`The navigation route ${pathnameAndSearch} is not ` +n `being used, since the URL being navigated to doesn't ` +n `match the allowlist.`);n }n return false;n }n}nexport { NavigationRoute };n”,“/*n Copyright 2019 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { logger } from 'workbox-core/_private/logger.js';nimport { WorkboxError } from 'workbox-core/_private/WorkboxError.js';nimport { Route } from './Route.js';nimport { RegExpRoute } from './RegExpRoute.js';nimport { getOrCreateDefaultRouter } from './utils/getOrCreateDefaultRouter.js';nimport './_version.js';n/**n * Easily register a RegExp, string, or function with a cachingn * strategy to a singleton Router instance.n *n * This method will generate a Route for you if needed andn * call [registerRoute()]{@link module:workbox-routing.Router#registerRoute}.n *n * @param {RegExp|string|module:workbox-routing.Route~matchCallback|module:workbox-routing.Route} capturen * If the capture param is a `Route`, all other arguments will be ignored.n * @param {module:workbox-routing~handlerCallback} [handler] A callbackn * function that returns a Promise resulting in a Response. This parametern * is required if `capture` is not a `Route` object.n * @param {string} [method='GET'] The HTTP method to match the Routen * against.n * @return {module:workbox-routing.Route} The generated `Route`(Useful forn * unregistering).n *n * @memberof module:workbox-routingn */nfunction registerRoute(capture, handler, method) {n let route;n if (typeof capture === 'string') {n const captureUrl = new URL(capture, location.href);n if (process.env.NODE_ENV !== 'production') {n if (!(capture.startsWith('/') || capture.startsWith('http'))) {n throw new WorkboxError('invalid-string', {n moduleName: 'workbox-routing',n funcName: 'registerRoute',n paramName: 'capture',n });n }n // We want to check if Express-style wildcards are in the pathname only.n // TODO: Remove this log message in v4.n const valueToCheck = capture.startsWith('http') ?n captureUrl.pathname : capture;n // See github.com/pillarjs/path-to-regexp#parametersn const wildcards = '[*:?+]';n if ((new RegExp(`${wildcards}`)).exec(valueToCheck)) {n logger.debug(`The '$capture' parameter contains an Express-style wildcard ` +n `character (${wildcards}). Strings are now always interpreted as ` +n `exact matches; use a RegExp for partial or wildcard matches.`);n }n }n const matchCallback = ({ url }) => {n if (process.env.NODE_ENV !== 'production') {n if ((url.pathname === captureUrl.pathname) &&n (url.origin !== captureUrl.origin)) {n logger.debug(`${capture} only partially matches the cross-origin URL ` +n `${url}. This route will only handle cross-origin requests ` +n `if they match the entire URL.`);n }n }n return url.href === captureUrl.href;n };n // If `capture` is a string then `handler` and `method` must be present.n route = new Route(matchCallback, handler, method);n }n else if (capture instanceof RegExp) {n // If `capture` is a `RegExp` then `handler` and `method` must be present.n route = new RegExpRoute(capture, handler, method);n }n else if (typeof capture === 'function') {n // If `capture` is a function then `handler` and `method` must be present.n route = new Route(capture, handler, method);n }n else if (capture instanceof Route) {n route = capture;n }n else {n throw new WorkboxError('unsupported-route-type', {n moduleName: 'workbox-routing',n funcName: 'registerRoute',n paramName: 'capture',n });n }n const defaultRouter = getOrCreateDefaultRouter();n defaultRouter.registerRoute(route);n return route;n}nexport { registerRoute };n”,“/*n Copyright 2019 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { getOrCreateDefaultRouter } from './utils/getOrCreateDefaultRouter.js';nimport './_version.js';n/**n * If a Route throws an error while handling a request, this `handler`n * will be called and given a chance to provide a response.n *n * @param {module:workbox-routing~handlerCallback} handler A callbackn * function that returns a Promise resulting in a Response.n *n * @memberof module:workbox-routingn */nfunction setCatchHandler(handler) {n const defaultRouter = getOrCreateDefaultRouter();n defaultRouter.setCatchHandler(handler);n}nexport { setCatchHandler };n”,“/*n Copyright 2019 Google LLCnn Use of this source code is governed by an MIT-stylen license that can be found in the LICENSE file or atn opensource.org/licenses/MIT.n*/nimport { getOrCreateDefaultRouter } from './utils/getOrCreateDefaultRouter.js';nimport './_version.js';n/**n * Define a default `handler` that's called when no routes explicitlyn * match the incoming request.n *n * Without a default handler, unmatched requests will go against then * network as if there were no service worker present.n *n * @param {module:workbox-routing~handlerCallback} handler A callbackn * function that returns a Promise resulting in a Response.n *n * @memberof module:workbox-routingn */nfunction setDefaultHandler(handler) {n const defaultRouter = getOrCreateDefaultRouter();n defaultRouter.setDefaultHandler(handler);n}nexport { setDefaultHandler 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