1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
7 this.onfetch = function(event
) {
8 response
= new Response(new Blob(), {
13 event
.respondWith(new Promise(function(r
) {
14 setTimeout(function() { r(response
); }, 5);
18 this.onsync = function(event
) {