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Issue 2575523002: Prerender: Confirm ServiceWorkers are invoked for NoState Prefetch (Closed)
Patch Set: comments Created 3 years, 11 months ago
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1 // Copyright 2017 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.
4
5 console.log('ServiceWorker executed');
6
7 self.addEventListener('install', function (event) {
8 console.log('ServiceWorker install');
9 });
10
11 self.addEventListener('fetch', function (event) {
12 // Replace main page with one that includes an image tag that can be
13 // preload scanned and prefetched.
14 console.log('Saw request ' + event.request.url);
15 if (event.request.url.endsWith('prerender/prefetch_page.html')) {
16 console.log('Intercepting ' + event.request.url);
17 var headers = new Headers;
18 headers.set('Content-Type', 'text/html; charset=UTF-8');
19 var content = '<html><body><img src="/prerender/image.png"/></body></html>';
20 var response = new Response(content, {
21 status: 200,
22 headers: headers });
23 event.respondWith(response);
24 }
25 });
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