workbox-broadcast-update

import {registerRoute} from 'workbox-routing'; import {StaleWhileRevalidate} from 'workbox-strategies'; import {BroadcastUpdatePlugin} from 'workbox-broadcast-update';  registerRoute(   ({url}) => url.pathname.startsWith('/api/'),   new StaleWhileRevalidate({     plugins: [new BroadcastUpdatePlugin()],   }) ); 

navigator.serviceWorker.addEventListener('message', async event => {   // Optional: ensure the message came from workbox-broadcast-update   if (event.data.meta === 'workbox-broadcast-update') {     const {cacheName, updatedURL} = event.data.payload;      // Do something with cacheName and updatedURL.     // For example, get the cached content and update     // the content on the page.     const cache = await caches.open(cacheName);     const updatedResponse = await cache.match(updatedURL);     const updatedText = await updatedResponse.text();   } }); 

{   type: 'CACHE_UPDATED',   meta: 'workbox-broadcast-update',   // The two payload values vary depending on the actual update:   payload: {     cacheName: 'the-cache-name',     updatedURL: 'https://example.com/'   } } 

import {registerRoute} from 'workbox-routing'; import {StaleWhileRevalidate} from 'workbox-strategies'; import {BroadcastUpdatePlugin} from 'workbox-broadcast-update';  registerRoute(   ({url}) => url.pathname.startsWith('/api/'),   new StaleWhileRevalidate({     plugins: [       new BroadcastUpdatePlugin({         headersToCheck: ['X-My-Custom-Header'],       }),     ],   }) ); 

import {BroadcastCacheUpdate} from 'workbox-broadcast-update';  const broadcastUpdate = new BroadcastCacheUpdate({   headersToCheck: ['X-My-Custom-Header'], });  const cacheName = 'api-cache'; const request = new Request('https://example.com/api');  const cache = await caches.open(cacheName); const oldResponse = await cache.match(request); const newResponse = await fetch(request);  broadcastUpdate.notifyIfUpdated({   cacheName,   oldResponse,   newResponse,   request, );