Javascript connect to websocket

Question

Following up form my last question -

var socket;
if ("WebSocket" in window)
  {
     alert("WebSocket is supported by your Browser!");
     // Let us open a web socket
   socket = new WebSocket("ws://localhost:10001");
  }

socket.onopen() = function(){
    alert("Connection Opened");
}


socket.onmessage() = function(msg){
    alert(msg);
}

I can connect to the server with telnet but I can't seem to connect using Javascript, why is this?

Answer 1

Because WebSocket is not a normal, general-purpose socket. It requires the server on the remote end to conform to a very specific handshake defined by the WebSocket protocol . If your server does not implement this protocol, WebSocket cannot connect to it.

Additionally, as Rocket points out, your code is currently attempting to call socket.onopen() and assign a value to the function call. Lose the parentheses.