Update app.js

app.js

@@ -33,7 +33,7 @@ app.get('/', (req, res) => {
         ws.send(JSON.stringify({ action: 'join', roomId }));
         currentRoom = roomId;
         log('Joined room: ' + roomId);
-        alert('Joined room: ' + roomId);
+      //  alert('Joined room: ' + roomId);
       };
       ws.onmessage = ({ data }) => {
         const msg = JSON.parse(data);