net/data/websocket/connect_to.html - cobalt - Git at Google

 <!DOCTYPE html>
 <html>
 <head>
 <title>test ws connection</title>
 <script type="text/javascript">

 var href = window.location.href;
 var queryBegin = href.indexOf('?url=');
 if (queryBegin == -1) {
   console.log("Failed to find ?url= in URL");
   document.title = 'FAIL';
   throw "FAILURE";
 }
 var url = href.slice(queryBegin + 5);

 // Do connection test.
 var ws = new WebSocket(url);

 ws.onopen = function()
 {
   // Set document title to 'PASS'. The test observer catches this title changes
   // to know the result.
   document.title = 'PASS';
 }

 ws.onclose = function()
 {
   // Set document title to 'FAIL'.
   document.title = 'FAIL';
 }

 ws.onmessage = function(evt)
 {
   domAutomationController.send(evt.data);
 }

 ws.onerror = function(evt)
 {
   console.error(`WebSocket error: '${evt.message}'`);
 }


 </script>
 </head>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<title>test ws connection</title>
	<script type="text/javascript">

	var href = window.location.href;
	var queryBegin = href.indexOf('?url=');
	if (queryBegin == -1) {
	console.log("Failed to find ?url= in URL");
	document.title = 'FAIL';
	throw "FAILURE";
	}
	var url = href.slice(queryBegin + 5);

	// Do connection test.
	var ws = new WebSocket(url);

	ws.onopen = function()
	{
	// Set document title to 'PASS'. The test observer catches this title changes
	// to know the result.
	document.title = 'PASS';
	}

	ws.onclose = function()
	{
	// Set document title to 'FAIL'.
	document.title = 'FAIL';
	}

	ws.onmessage = function(evt)
	{
	domAutomationController.send(evt.data);
	}

	ws.onerror = function(evt)
	{
	console.error(`WebSocket error: '${evt.message}'`);
	}


	</script>
	</head>
	</html>