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<!DOCTYPE html>
<html>
<head>
<title>Test prototype object of a custom element</title>
<meta name="author" title="Sergey G. Grekhov" href="mailto:sgrekhov@unipro.ru">
<meta name="assert" content="If PROTOTYPE is null, let PROTOTYPE be the result of invoking Object.create with HTMLElement's interface prototype object as only argument">
<link rel="help" href="http://www.w3.org/TR/custom-elements/#extensions-to-document-interface-to-register">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../testcommon.js"></script>
</head>
<body>
<div id="log"></div>
<script>
test(function() {
var doc = newHTMLDocument();
var GeneratedConstructor = doc.registerElement('x-a');
var customElement = new GeneratedConstructor();
assert_class_string(customElement, 'HTMLElement',
'Custom element should be a HTMLElement, ' +
'if its type is registered without prototype');
}, 'Custom element should have HTMLElement prototype, ' +
'if its type is registered without prototype');
</script>
</body>
</html>
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