75 lines
2.1 KiB
JavaScript
75 lines
2.1 KiB
JavaScript
const CACHE_NAME = 'circuitjs1-app-cache-v1';
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const urlsToCache = [
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'about.html',
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'canvas2svg.js',
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'circuitjs.html',
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'crystal.html',
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'customfunction.html',
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'customlogic.html',
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'customtransformer.html',
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'diodecalc.html',
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'icon512.png',
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'icon128.png',
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'iframe.html',
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'lz-string.min.js',
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'manifest.json',
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'mexle.html',
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'mosfet-beta.html',
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'opampreal.html',
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'split.js',
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'subcircuits.html',
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// put everything else here
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];
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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 => cache.addAll(urlsToCache))
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);
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});
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self.addEventListener('fetch', (event) => {
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event.respondWith(
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caches.match(event.request).then((cachedResponse) => {
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if (cachedResponse) {
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// If the resource is already cached, return it
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return cachedResponse;
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}
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// Otherwise, fetch it from the network and add it to the cache
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return fetch(event.request).then((networkResponse) => {
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// Only cache non-GET requests and responses that aren't errors
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if (
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event.request.method === 'GET' &&
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networkResponse.status === 200
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) {
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const responseClone = networkResponse.clone();
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caches.open(CACHE_NAME).then((cache) => {
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cache.put(event.request, responseClone);
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});
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}
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return networkResponse;
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});
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})
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);
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});
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// Activate event: cleans up old caches
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self.addEventListener('activate', (event) => {
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const cacheWhitelist = [CACHE_NAME]; // List of cache versions you want to keep
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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((cacheName) => {
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if (!cacheWhitelist.includes(cacheName)) {
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return caches.delete(cacheName); // Delete old caches that aren't in whitelist
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}
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})
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);
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})
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);
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});
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