<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta charset="utf-8">
<style media="screen">
html,body,iframe {
margin: 0;
padding: 0;
}
html,body {
height: 100%;
overflow: hidden;
}
iframe {
width: 100%;
height: 100%;
border: 0;
}
</style>
</head>
<body>
<iframe src="//www.herokucdn.com/error-pages/no-such-app.html"></iframe>
</body>
</html>
