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Test Info:

<!DOCTYPE html>
<html>
<head>
<script>
function boom()
{
var ctx = document.querySelector("canvas").getContext('2d');
ctx.rect(1, 2, 3, 4);
ctx.fill();
for (var i = 0; i < 48; ++i) {
ctx.scale(100, 100);
}
ctx.isPointInPath(5, 6);
}
</script>
</head>
<body onload="boom();"><canvas width="100" height="100"></canvas></body>
</html>