var cacheName = 'torch_timer'; var filesToCache = [ './', './index.html', './torch_timer.js', './torch_timer_bg.wasm', ]; /* Start the service worker and cache all of the app's content */ self.addEventListener('install', function (e) { e.waitUntil( caches.open(cacheName).then(function (cache) { return cache.addAll(filesToCache); }) ); }); /* Serve cached content when offline */ self.addEventListener('fetch', function (e) { e.respondWith( caches.match(e.request).then(function (response) { return response || fetch(e.request); }) ); });