43 lines
1.6 KiB
TypeScript
43 lines
1.6 KiB
TypeScript
import { WorkboxPlugin } from 'workbox-core/types.js';
|
|
import { PrecacheController } from './PrecacheController.js';
|
|
import './_version.js';
|
|
/**
|
|
* `PrecacheFallbackPlugin` allows you to specify an "offline fallback"
|
|
* response to be used when a given strategy is unable to generate a response.
|
|
*
|
|
* It does this by intercepting the `handlerDidError` plugin callback
|
|
* and returning a precached response, taking the expected revision parameter
|
|
* into account automatically.
|
|
*
|
|
* Unless you explicitly pass in a `PrecacheController` instance to the
|
|
* constructor, the default instance will be used. Generally speaking, most
|
|
* developers will end up using the default.
|
|
*
|
|
* @memberof workbox-precaching
|
|
*/
|
|
declare class PrecacheFallbackPlugin implements WorkboxPlugin {
|
|
private readonly _fallbackURL;
|
|
private readonly _precacheController;
|
|
/**
|
|
* Constructs a new PrecacheFallbackPlugin with the associated fallbackURL.
|
|
*
|
|
* @param {Object} config
|
|
* @param {string} config.fallbackURL A precached URL to use as the fallback
|
|
* if the associated strategy can't generate a response.
|
|
* @param {PrecacheController} [config.precacheController] An optional
|
|
* PrecacheController instance. If not provided, the default
|
|
* PrecacheController will be used.
|
|
*/
|
|
constructor({ fallbackURL, precacheController, }: {
|
|
fallbackURL: string;
|
|
precacheController?: PrecacheController;
|
|
});
|
|
/**
|
|
* @return {Promise<Response>} The precache response for the fallback URL.
|
|
*
|
|
* @private
|
|
*/
|
|
handlerDidError: WorkboxPlugin['handlerDidError'];
|
|
}
|
|
export { PrecacheFallbackPlugin };
|