| self.addEventListener('activate', event => { |
| event.waitUntil( |
| self.registration.navigationPreload.enable()); |
| }); |
| |
| function get_response_info(r) { |
| var info = { |
| type: r.type, |
| url: r.url, |
| status: r.status, |
| ok: r.ok, |
| statusText: r.statusText, |
| headers: [] |
| }; |
| r.headers.forEach((value, name) => { info.headers.push([value, name]); }); |
| return info; |
| } |
| |
| function post_to_page(data) { |
| return self.clients.matchAll() |
| .then(clients => clients.forEach(client => client.postMessage(data))); |
| } |
| |
| self.addEventListener('fetch', event => { |
| event.respondWith( |
| event.preloadResponse |
| .then( |
| res => { |
| return post_to_page(get_response_info(res)).then(_ => res); |
| }, |
| err => new Response(err.toString()))); |
| }); |
