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sw.js
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const cacheName = 'Pomodoro-Clock';
const staticAssets = [
'./',
'./css/style.css',
'./js/app.js',
'./js/jquery-3.3.1.min.js',
'./js/jquery-3.3.1.js',
'./img/favicon.png',
'./img/bg.jpg',
]
self.addEventListener('install', event => {
console.log('[ServiceWorker] Install');
self.skipWaiting();
event.waitUntil(
caches.open(cacheName).then(function (cache) {
console.log('[ServiceWorker] Caching app shell');
return cache.addAll(staticAssets);
})
);
})
self.addEventListener('activate', function (e) {
console.log('[ServiceWorker] Activate');
});
self.addEventListener('fetch', event => {
const req = event.request;
const url = new URL(req.url);
if (url.origin === location.origin) {
event.respondWith(cacheFirst(req))
}
})
async function cacheFirst(req) {
const cacheResponse = await caches.match(req);
return cacheResponse || fetch(req);
}