Untitled

<html>
<head>
<script type="text/javascript">
window.addEventListener('load', function() {
	netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserRead");
	var canvas = document.createElement('canvas');
	canvas.style.display = "none";
	canvas.left = 0;
	canvas.top = 0;
	canvas.width = 300;
	canvas.height = 300;

	document.getElementsByTagName('body')[0].appendChild(canvas);
	var ctx = canvas.getContext("2d");
	ctx.clearRect(0, 0, 300, 300);
	ctx.save();
	ctx.scale(1.0, 1.0);
	ctx.drawWindow(window, 0, 0, 300, 300, "rgb(255,255,255)");
	ctx.restore();
	location.href = canvas.toDataURL("image/png");
}, false);
</script>
</head>
<body>
あああああああああああああああああああああああああああああ<br />
いいいいいいいいいいいいいいいいいいいいいいいいいいいいい<br />
ううううううううううううううううううううううううううううう<br />
</body>
</html>