<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script>
function boom()
{
  var frameWin =  document.getElementById("f").contentWindow;
  Object.create(frameWin).self;
}
</script>
</head>
<body onload="boom()">
<iframe id="f" src="data:text/html,3"></iframe>
</body>
</html>
