importScripts('https://www.gstatic.com/firebasejs/7.14.6/firebase-app.js'); importScripts('https://www.gstatic.com/firebasejs/7.14.6/firebase-messaging.js'); var firebaseConfig = { apiKey: "AIzaSyBQdfrebRxRWLqX02PNfEgrD1j5ICTsdMQ", authDomain: "code24-e5ba8.firebaseapp.com", projectId: "code24-e5ba8", storageBucket: "code24-e5ba8.appspot.com", messagingSenderId: "66186613861", appId: "1:66186613861:web:a9808c5456c46cf489e28c", measurementId: "G-CWTFQE2J1V" }; firebase.initializeApp(firebaseConfig); const messaging=firebase.messaging(); messaging.setBackgroundMessageHandler(function (payload) { console.log(payload); const notification=JSON.parse(payload); const notificationOption={ body:notification.body, icon:notification.icon }; return self.registration.showNotification(payload.notification.title,notificationOption); });