54 lines
1.4 KiB
JavaScript
Vendored
54 lines
1.4 KiB
JavaScript
Vendored
var staticCacheName = "pwa-v2";
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var filesToCache = [
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'/public/img/pwa/icon-192x192.png',
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'/public/img/pwa/icon-512x512.png'
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];
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// Cache on install
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self.addEventListener("install", event => {
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event.waitUntil(
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caches.open(staticCacheName)
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.then(cache => {
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return cache.addAll(filesToCache);
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})
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.then(() => self.skipWaiting())
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)
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});
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// Clear cache on activate
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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
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.filter(cacheName => (cacheName.startsWith("pwa-")))
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.filter(cacheName => (cacheName !== staticCacheName))
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.map(cacheName => caches.delete(cacheName))
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);
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}).then(() => self.clients.claim())
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);
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});
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// Navigation must prefer the network so cached redirects cannot mask auth state.
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self.addEventListener("fetch", event => {
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if (event.request.method !== 'GET') {
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return;
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}
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if (event.request.mode === 'navigate') {
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event.respondWith(
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fetch(event.request)
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.catch(() => caches.match(event.request))
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);
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return;
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}
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event.respondWith(
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caches.match(event.request)
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.then(response => {
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return response || fetch(event.request);
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})
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)
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});
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