count_connection.html - Android社区 - https://www.androidos.net.cn/

<!doctype html>
<html>
<head>
<title>Connect to a WebSocket server</title>
<script type="text/javascript">
var protocol = location.protocol.replace('http', 'ws');
var url = protocol + '//' + location.host + '/count-connection';

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

ws.onmessage = function(e) {
    document.title = (e.data === 'open: 1, closed: 1' ? 'PASS' : 'FAIL');
}

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

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