45 lines
951 B
JavaScript
45 lines
951 B
JavaScript
const CACHE_NAME = 'nexus-cache-v1';
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const urlsToCache = [
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'.',
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'index.html',
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'style.css',
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'app.js',
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'manifest.json'
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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) => {
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console.log('Opened cache');
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return cache.addAll(urlsToCache);
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})
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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)
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.then((response) => {
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if (response) {
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return response;
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}
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return fetch(event.request);
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})
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);
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});
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self.addEventListener('activate', (event) => {
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const cacheWhitelist = [CACHE_NAME];
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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.indexOf(cacheName) === -1) {
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return caches.delete(cacheName);
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}
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})
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);
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})
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);
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}); |