<!DOCTYPE html>
<html>
<body>
<script type="text/javascript">
// This is a regression test for crbug.com/1427868
const canvasElem = document.createElement('canvas');
document.body.appendChild(canvasElem);
const ctx = canvasElem.getContext('2d', {alpha: false});
ctx.globalCompositeOperation = 'destination-out';
ctx.fillRect(0, 0, canvasElem.width, canvasElem.height);
</script>
</body>
</html>
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