<!DOCTYPE html>
<html>
<script>

function canvasTest() {
    if (window.testRunner)
        testRunner.dumpAsText();

    var worker = new Worker('non-existent-file');
    var imageWidth = 1;
    var imageHeight = 1;
    var image = new ImageData( imageWidth, imageHeight);
    var context = document.getElementById("canvas").getContext("2d");
    worker.postMessage({data: image.data.buffer}, [image.data.buffer]);
    context.putImageData(image, 0, 0);
}
</script>

<body onload=canvasTest()>
<div>Test passes if it does not crash.</div>
<canvas id=canvas></canvas>
</body>
</html>