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<!DOCTYPE html>
<script src="../../js/resources/js-test-pre.js"></script>
<script src="testutils.js"></script>
<body>
<x-a></x-a>
<script>
if (fork()) {
// The controlling parent frame
description('Tests destroying a context during attributeChanged callback.');
jsTestIsAsync = true;
successfullyParsed = true;
} else {
// The child frame
var proto = Object.create(HTMLElement.prototype);
proto.attributeChangedCallback = function () {
destroyContext();
};
var A = document.register('x-a', {prototype: proto});
var a = new A();
a.id = 'boom';
done();
}
</script>
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