Update app.js

app.js

@@ -32,6 +32,7 @@ app.get('/', (req, res) => {
         ws.send(JSON.stringify({ action: 'join', roomId }));
         currentRoom = roomId;
         log('Joined room: ' + roomId);
+        alert('Joined room: ' + roomId);
       };
       ws.onmessage = ({ data }) => {
         const msg = JSON.parse(data);
@@ -60,6 +61,7 @@ wss.on('connection', ws => {
 
   ws.on('message', raw => {
     let msg;
+    console.log("message enter")
     try { msg = JSON.parse(raw); } catch (e) { return; }
 
     if (msg.action === 'join' && msg.roomId) {
@@ -85,12 +87,14 @@ wss.on('connection', ws => {
         }
       }
     }
+    console.log("message down")
   });
 
   ws.on('close', () => {
     if (currentRoom && rooms.has(currentRoom)) {
       rooms.get(currentRoom).delete(ws);
     }
+    console.log("room close")
   });
 });