FCM firebase-messaging-sw.js.patch diff refs https://github.com/firebase/quickstart-js/blob/master/messaging/firebase-messaging-sw.js

fcm_firebase-messaging-sw.js.patch

--- ../html.bak/firebase-messaging-sw.js        2019-07-04 03:46:11.000000000 +0900
+++ firebase-messaging-sw.js    2019-07-04 11:41:01.940048485 +0900
@@ -1,9 +1,19 @@
 // Import and configure the Firebase SDK
 // These scripts are made available when the app is served or deployed on Firebase Hosting
 // If you do not serve/host your project using Firebase Hosting see https://firebase.google.com/docs/web/setup
-importScripts('/__/firebase/5.5.6/firebase-app.js');
-importScripts('/__/firebase/5.5.6/firebase-messaging.js');
-importScripts('/__/firebase/init.js');
+importScripts('https://www.gstatic.com/firebasejs/6.2.4/firebase-app.js');
+importScripts('https://www.gstatic.com/firebasejs/6.2.4/firebase-messaging.js');
+  var firebaseConfig = {
+    apiKey: "AIzaSyCNp7t2Cug1TIjk-8WKF-QX9QVaU2m-UGM",
+    authDomain: "smd-pj01.firebaseapp.com",
+    databaseURL: "https://smd-pj01.firebaseio.com",
+    projectId: "smd-pj01",
+    storageBucket: "",
+    messagingSenderId: "596738022287",
+    appId: "1:596738022287:web:ddc64d7e8e3c8548"
+  };
+  firebase.initializeApp(firebaseConfig);
+

 var messaging = firebase.messaging();