       <label for="jsonMessage">JSON Message:</label>
                <textarea id="jsonMessage" rows="4" placeholder="Enter JSON data...">{
  "type": "chat",
  "user": "BrowserClient",
  "message": "Hello from JSON!",
  "timestamp": "2024-01-01T12:00:00Z"
}</textarea>
            </div>
            <div class="button-group">
                <button onclick="sendJsonMessage()">Send JSON Message</button>
                <button onclick="sendChatMessage()">Send Chat Message</button>
                <button on