let CACHE_NAME = 'workavdenture-cache-v1'; let urlsToCache = [ '/' ]; self.addEventListener('install', function(event) { // Perform install steps event.waitUntil( caches.open(CACHE_NAME) .then((cache) => { return cache.addAll(urlsToCache); }) ); }); self.addEventListener('fetch', (event) => { event.respondWith( caches.match(event.request) .then((response) => { return fetch(event.request).then((response) => { //Dev service worker, just return reponse return response; } ); }) ); }); self.addEventListener('wait', function(event) { //TODO wait }); self.addEventListener('update', function(event) { //TODO update }); self.addEventListener('beforeinstallprompt', (e) => { //TODO change prompt });