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<html>
<head>
    <title>Demo Websocket HTTP Callbackr</title>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width">
</head>
<body>
<p>Configure Your YoctoHub or VirtualHub to use ws:<%=request.getRequestURL().toString().substring(5)%>wscallback.</p>
</body>
</html>