* Load current step's code into editor

* Go to next step

* Go to previous step

* Show specific tutorial step * @param {number} stepIndex

* Update the timestamp for the given URL. This ensures the when * removing entries based on maximum entries, most recently used * is acc

* A utility method that makes it easier to use `event.waitUntil` with * async functions and return the result. * * @param {ExtendableEv

* This method will call cacheWillUpdate on the available plugins (or use * status === 200) to determine if the Response is safe and valid to ca

* This method will extract the data header and parse it into a useful * value. * * @param {Response} cachedResponse * @ret

* @private * @param {Request|string} request A request to run this strategy for. * @param {workbox-strategies.StrategyHandler} handler T

* @param {Response} cachedResponse * @return {boolean} * * @private

* Routes match handler. * * @param {Object} options * @param {URL} options.url * @param {Request} options.request *

* Performs an upgrade of indexedDB. * * @param {IDBPDatabase<CacheDbSchema>} db * * @private

* Adds a message event listener for URLs to cache from the window. * This is useful to cache resources loaded on the page prior to when the

* Adds a fetch event listener to respond to events when a route matches * the event's request.

* Add a `fetch` listener to the service worker that will * respond to * [network requests]{@link https://developer.mozilla.org/en-US/docs/We

* This method will add items to the precache list, removing duplicates * and ensuring the information is valid. * * @param {Array

* Matches an item in the cache, ignoring specific URL params. This is similar * to the `ignoreSearch` option, but it allows you to ignore just sp

* A utility function that determines whether the current browser supports * constructing a new `Response` from a `response.body` stream. *

* Allows developers to copy a response and modify its `headers`, `status`, * or `statusText` values (the values settable via a * [`ResponseI

* Converts a manifest entry into a versioned URL suitable for precaching. * * @param {Object|string} entry * @return {string} A URL wit

* Create the indicator DOM element * @returns {HTMLElement}

* Create the instruments section * @returns {HTMLElement}

* Create the mapping section (top goal + builtins list) * @returns {HTMLElement}

* Create overlay DOM structure

* This is a helper method that performs two operations: * * - Deletes *all* the underlying Cache instances associated with this plugin

* Delete a database. * * @param name Name of the database.

* Returns a promise that resolves once all promises passed to * {@link workbox-strategies.StrategyHandler~waitUntil} * have settled.

* Runs all of the callback functions, one at a time sequentially, in the order * in which they were registered. * * @memberof workbox-c

* Calls `this.fetch()` and (in the background) runs `this.cachePut()` on * the response generated by `this.fetch()`. * * The call

* Checks a request and URL (and optionally an event) against the list of * registered routes, and if there's a match, returns the corresponding

* Generator function that yields possible variations on the original URL to * check, one at a time. * * @param {string} url * @par

* Get overlay DOM element * @returns {HTMLElement}

* Get the DOM element * @returns {HTMLElement}

* @param {string} url A cache key whose SRI you want to look up. * @return {string} The subresource integrity associated with the cache key,

* Returns the timestamp stored for a given URL. * * @param {string} url * @return {number | undefined} * * @private

* Returns a mapping of a precached URL to the corresponding cache key, taking * into account the revision information for the URL. *

* Check if tutorial has been started * @returns {boolean}

* Checks a response to see whether it's cacheable or not, based on this * object's configuration. * * @param {Response} response

* Load progress from localStorage

* Handle tutorial completion

* Open a database. * * @param name Name of the database. * @param version Schema version. * @param callbacks Additional callbacks.

* Adds items to the precache list, removing any duplicates and * stores the files in the * {@link workbox-core.cacheNames|"precache cache"}

* Adds items to the precache list, removing any duplicates and * stores the files in the * {@link workbox-core.cacheNames|"precache cach

* @param {Array<string>} deletedURLs * * @private * @memberof workbox-precaching

* @param {Array<string>} urlsToPrecache * @param {Array<string>} urlsAlreadyPrecached * * @private * @memberof workbox-precaching

* Easily register a RegExp, string, or function with a caching * strategy to a singleton Router instance. * * This method will generate

* Removes any URL search parameters that should be ignored. * * @param {URL} urlObject The original URL. * @param {Array<RegExp>} ignor