serviceworker.js in serviceworker-rails-0.5.1

- old
+ new
@@ -1,14 +1,53 @@
-function onInstall() {
-  console.log('[Serviceworker]', "Installing!");
-}
-
-function onActivate() {
-  console.log('[Serviceworker]', "Activating!");
-}
-
-function onFetch() {
-}
-
-self.addEventListener('install', onInstall);
-self.addEventListener('activate', onActivate);
-self.addEventListener('fetch', onFetch);
+// function onInstall(event) {
+//   console.log('[Serviceworker]', "Installing!", event);
+//   event.waitUntil(
+//     caches.open('cached-assets-v1').then(function prefill(cache) {
+//       return cache.addAll([
+//         '<%%= asset_path "application.js" %>',
+//         '<%%= asset_path "application.css" %>',
+//         '/offline.html'
+//       ]);
+//     })
+//   );
+// }
+//
+// function onActivate(event) {
+//   console.log('[Serviceworker]', "Activating!", event);
+//   event.waitUntil(
+//     caches.keys().then(function(cacheNames) {
+//       return Promise.all(
+//         cacheNames.filter(function(cacheName) {
+//           // Return true if you want to remove this cache,
+//           // but remember that caches are shared across
+//           // the whole origin
+//            return key.indexOf('v1') !== 0;
+//         }).map(function(cacheName) {
+//           return caches.delete(cacheName);
+//         })
+//       );
+//     })
+//   );
+// }
+//
+// function onFetch(event) {
+//   // Fetch from network, fallback to cached content, then offline.html for same-origin GET requests
+//   var request = event.request;
+//
+//   if (!request.url.match(/^https?:\/\/example.com/) ) { return; }
+//   if (request.method !== 'GET') { return; }
+//
+//   event.respondWith(
+//     fetch(request).                                       // first, the network
+//       .catch(function fallback() {
+//          caches.match(request).then(function(response) {  // then, the cache
+//            response || caches.match("/offline.html");     // then, /offline cache
+//          })
+//        })
+//   );
+//
+//   // See https://jakearchibald.com/2014/offline-cookbook/#on-network-response for more examples
+// }
+//
+// self.addEventListener('install', onInstall);
+// self.addEventListener('activate', onActivate);
+// self.addEventListener('fetch', onFetch);