https://www.qnap.com/firebase-messaging-sw.js

1self.addEventListener('notificationclick', function (e) {
2  e.notification.close();
3  let clickResponsePromise = Promise.resolve();
4  if (e.notification.data && e.notification.data.click_action) {
5    clickResponsePromise = clients.openWindow(e.notification.data.click_action);
6  }
7
8  e.waitUntil(
9    Promise.all([
10      clickResponsePromise,
11    ])
12  );
13});
14
15importScripts('https://www.gstatic.com/firebasejs/8.6.8/firebase-app.js');
16importScripts('https://www.gstatic.com/firebasejs/8.6.8/firebase-messaging.js');
17
18firebase.initializeApp({
19  apiKey: 'AIzaSyAhwiBZxXRx0kDnj4NcEuQ9BXGVcFtG_K4',
20  authDomain: 'nifty-oxide-155207.firebaseapp.com',
21  databaseURL: 'https://nifty-oxide-155207.firebaseio.com',
22  projectId: 'nifty-oxide-155207',
23  storageBucket: 'nifty-oxide-155207.appspot.com',
24  messagingSenderId: '988594641313',
25  appId: "1:988594641313:web:3d967d5e5fafa68a3113e0"
26});
27
28const messaging = firebase.messaging();
29
30messaging.setBackgroundMessageHandler(function (payload) {
31  console.log('[firebase-messaging-sw.js] Received background message ', payload);
32  return self.registration.showNotification(payload.data.title,
33    Object.assign({data: payload.data}, payload.data));
34
35});