56 lines
1.6 KiB
JavaScript
56 lines
1.6 KiB
JavaScript
// public/sw.js
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const CACHE_NAME = 'app-cache-v1';
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const ASSETS_TO_CACHE = [
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'/',
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'/manifest.json',
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// Add paths to your main CSS and JS files here
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// e.g., '/build/app.css', '/build/app.js'
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];
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// Install Event: Cache core static assets
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self.addEventListener('install', event => {
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event.waitUntil(
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caches.open(CACHE_NAME)
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.then(cache => {
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return cache.addAll(ASSETS_TO_CACHE);
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})
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);
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self.skipWaiting();
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});
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// Activate Event: Clean up old caches if you change the CACHE_NAME version
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self.addEventListener('activate', event => {
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event.waitUntil(
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caches.keys().then(cacheNames => {
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return Promise.all(
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cacheNames.map(cache => {
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if (cache !== CACHE_NAME) {
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return caches.delete(cache);
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}
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})
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);
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})
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);
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self.clients.claim();
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});
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// Fetch Event: Network First, Fallback to Cache
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self.addEventListener('fetch', event => {
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// Only cache GET requests
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if (event.request.method !== 'GET') return;
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event.respondWith(
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fetch(event.request)
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.then(networkResponse => {
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// If the network request succeeds, clone it and put it in the cache
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return caches.open(CACHE_NAME).then(cache => {
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cache.put(event.request, networkResponse.clone());
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return networkResponse;
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});
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})
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.catch(() => {
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// If the network fails (offline), try to serve from cache
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return caches.match(event.request);
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})
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);
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}); |