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<!DOCTYPE HTML>
<script src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" href="/tests/SimpleTest/test.css">
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1538622">Mozilla Bug 1538622</a>
<script>
SimpleTest.waitForExplicitFinish();
let o1 = new ImageData(25, 1),
o2 = new ImageData(50, 1),
o3 = new ImageData(75, 1),
o4 = new ImageData(100, 1);
let data = {
img1: o1,
img2: o2,
img3: o3,
img4: o4,
img5: o4,
};
window.addEventListener("message", windowMessage);
window.postMessage(data);
function windowMessage(e) {
let dataCopied = e.data;
ok(dataCopied.img5 instanceof ImageData, "backref ImageData should still be an ImageData");
is(dataCopied.img5, dataCopied.img4, "backref ImageData should be the referenced one");
SimpleTest.finish();
}
</script>
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