kind of works:

public/room.html

@@ -34,6 +34,7 @@
 
     // Initialize game board
     function drawBoard(board) {
+      console.log(board);
       // Draw Connect4 grid based on board state
       ctx.clearRect(0, 0, canvas.width, canvas.height);
       for (let row = 0; row < ROWS; row++) {
@@ -59,7 +60,6 @@
     }
 
     canvas.addEventListener('click', (e) => {
-      if (winner !== null) return;
       const rect = canvas.getBoundingClientRect();
       const x = e.clientX - rect.left;
       const col = Math.floor(x / CELL_SIZE);

server.js

@@ -54,6 +54,7 @@ io.on('connection', (socket) => {
 
     let startGame = (room, roomId) => {
         console.log("Two players on room " + roomId + ", game starting.");
+        console.log(room);
         io.to(roomId).emit('startGame', {
             board: room.gameState,
             currentPlayer: room.currentPlayer