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Test Info:

<!DOCTYPE html>↩
<html lang="en" xmlns="http://www.w3.org/1999/xhtml">↩
<head>↩
<meta charset="utf-8" />↩
<title></title>↩
<script type="text/javascript">↩
function paintCanvas() {↩
var elem = document.getElementById("mycanv");↩
var ctx = elem.getContext('2d');↩
ctx.fillStyle = 'white';↩
ctx.fillRect(0, 0, 200, 200);↩
ctx.beginPath();↩
ctx.arc(150, 150, 100, 0, Math.PI * 2, true);↩
ctx.closePath();↩
ctx.clip();↩
// create radial gradient↩
var grd = ctx.createRadialGradient(110, 110, 42, 110, 110, 121);↩
grd.addColorStop(0, '#FFFFFF');↩
grd.addColorStop(1, '#E5E5E5');↩
ctx.fillStyle = grd;↩
// This should be completely clipped out!↩
ctx.fillRect(0, 0, 1, 1);↩
}↩
</script>↩
</head>↩
<body onload="paintCanvas();">↩
<canvas width=200 height=200 moz-opaque="true" id="mycanv"></canvas>↩
</body>↩
</html>↩