socket-test.html

<!doctype html>
<html>
<head>

  <title>CPP Socket Test</title>
  <script src="https://cdn.socket.io/socket.io-1.3.4.js"></script>

  <script>

  var ws;

  function WebSocketTest() {
    if ("WebSocket" in window) {
       console.log("WebSocket is supported by your Browser!");

       // Let us open a web socket
       ws = new WebSocket("ws://localhost:5619");

       ws.onopen = function() {
          // Web Socket is connected, send data using send()
          ws.send("Message to send");
       };

       ws.onmessage = function (evt) {
         console.log('received data: ', evt.data);
       };

       ws.onclose = function() {
          // websocket is closed.
          alert("Connection is closed...");
       };
    } else {
       // The browser doesn't support WebSocket
       alert("WebSocket NOT supported by your Browser!");
    }
  }
  </script>

</head>
<body>
</body>
</html>