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<body>
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if (window.testRunner)
    testRunner.dumpAsText()

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