<!DOCTYPE HTML>
<body>
<script>
if (window.testRunner)
    testRunner.dumpAsText()

document.body.appendChild(document.createElement("p")).appendChild(document.createTextNode("This test passes if it does not cause a crash"));
var canvas = document.body.appendChild(document.createElement("canvas"));
canvas.width = "400";
canvas.height = "400";
var ctx = canvas.getContext('2d');
ctx.shadowBlur = 10500000000;
ctx.shadowColor = "green";
ctx.fillRect(0, 0, 10, 10);
</script>
</body>

