| 1 | import { Strategy, StrategyOptions } from './Strategy.js';
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| 2 | import { StrategyHandler } from './StrategyHandler.js';
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| 3 | import './_version.js';
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| 4 | /**
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| 5 | * An implementation of a
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| 6 | * [stale-while-revalidate](https://developer.chrome.com/docs/workbox/caching-strategies-overview/#stale-while-revalidate)
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| 7 | * request strategy.
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| 8 | *
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| 9 | * Resources are requested from both the cache and the network in parallel.
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| 10 | * The strategy will respond with the cached version if available, otherwise
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| 11 | * wait for the network response. The cache is updated with the network response
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| 12 | * with each successful request.
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| 13 | *
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| 14 | * By default, this strategy will cache responses with a 200 status code as
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| 15 | * well as [opaque responses](https://developer.chrome.com/docs/workbox/caching-resources-during-runtime/#opaque-responses).
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| 16 | * Opaque responses are cross-origin requests where the response doesn't
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| 17 | * support [CORS](https://enable-cors.org/).
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| 18 | *
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| 19 | * If the network request fails, and there is no cache match, this will throw
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| 20 | * a `WorkboxError` exception.
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| 21 | *
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| 22 | * @extends workbox-strategies.Strategy
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| 23 | * @memberof workbox-strategies
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| 24 | */
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| 25 | declare class StaleWhileRevalidate extends Strategy {
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| 26 | /**
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| 27 | * @param {Object} [options]
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| 28 | * @param {string} [options.cacheName] Cache name to store and retrieve
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| 29 | * requests. Defaults to cache names provided by
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| 30 | * {@link workbox-core.cacheNames}.
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| 31 | * @param {Array<Object>} [options.plugins] [Plugins]{@link https://developers.google.com/web/tools/workbox/guides/using-plugins}
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| 32 | * to use in conjunction with this caching strategy.
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| 33 | * @param {Object} [options.fetchOptions] Values passed along to the
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| 34 | * [`init`](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/fetch#Parameters)
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| 35 | * of [non-navigation](https://github.com/GoogleChrome/workbox/issues/1796)
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| 36 | * `fetch()` requests made by this strategy.
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| 37 | * @param {Object} [options.matchOptions] [`CacheQueryOptions`](https://w3c.github.io/ServiceWorker/#dictdef-cachequeryoptions)
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| 38 | */
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| 39 | constructor(options?: StrategyOptions);
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| 40 | /**
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| 41 | * @private
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| 42 | * @param {Request|string} request A request to run this strategy for.
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| 43 | * @param {workbox-strategies.StrategyHandler} handler The event that
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| 44 | * triggered the request.
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| 45 | * @return {Promise<Response>}
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| 46 | */
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| 47 | _handle(request: Request, handler: StrategyHandler): Promise<Response>;
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| 48 | }
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| 49 | export { StaleWhileRevalidate };
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