| // Copyright 2018 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| self.addEventListener('activate', (e) => { |
| if (location.href.endsWith('?navigation-preload')) { |
| e.waitUntil(self.registration.navigationPreload.enable()) |
| } |
| }) |
| |
| self.addEventListener('fetch', (event) => { |
| if (location.href.endsWith('?generated')) { |
| event.respondWith(new Response( |
| '<script>\n' + |
| 'window.parent.document.title =\'' + |
| event.request.headers.get('accept') + '\';\n</script>', |
| {headers:[['content-type', 'text/html']]})); |
| } else if (location.href.endsWith('?navigation-preload')) { |
| event.respondWith(event.preloadResponse); |
| } |
| }); |
