| self.addEventListener('activate', event => { | |
| event.waitUntil( | |
| registration.navigationPreload.enable() | |
| .then(_ => registration.navigationPreload.setHeaderValue('hello'))); | |
| }); | |
| self.addEventListener('fetch', event => { | |
| if (event.request.url.indexOf('BrokenChunked') != -1) { | |
| event.respondWith( | |
| event.preloadResponse.then(r => r.text()) | |
| .catch(_ => { return new Response('dummy'); })); | |
| return; | |
| } | |
| if (event.preloadResponse) { | |
| event.respondWith(event.preloadResponse); | |
| } | |
| }); |