test.html

<html>

<head>
<meta charset="utf-8">
</head>

<body>

<button onclick="makeEvent();">make event</button>

<script>

// go-http-light test page
// run server and open page

function makeEvent() {
	var xhr = new XMLHttpRequest();
	xhr.open('GET', 'http://127.0.0.1:8095/pub?intent=channelname.taskname.12345&obj={"id":123}', false);
	xhr.send();	
}

var socket = new WebSocket("ws://127.0.0.1:8095/sub");

socket.onopen = function() {
  console.log("Соединение установлено.");
  socket.send('{"op": "sub", "intent": "channelname.taskname.12345"}');
  //socket.send('{"op": "unsub", "task": "channelname.taskname.12345"}');
};

socket.onclose = function(event) {
  if (event.wasClean) {
    console.log('Connection closed gracefull');
  } else {
    console.log('Connection closed')
  }
  console.log('disconnect code: ' + event.code + ' reason: ' + event.reason);
};

socket.onmessage = function(event) {
  alert("Received data: " + event.data);
};

socket.onerror = function(error) {
  console.log("Error: " + error.message);
};


</script>

</body>

</html>