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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1083587
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1083587</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css"/>
</head>
<body>
<a target="_blank" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1083587">Mozilla Bug 1083587</a>
<p id="display"></p>
<div id="content" style="display: none">
<div id="host"></div>
</div>
<pre id="test">
</pre>
<script type="application/javascript">
/** Test for Bug 1083587 **/
var hostInDoc = document.getElementById("host");
var shadowOne = hostInDoc.createShadowRoot();
is(shadowOne.olderShadowRoot, null);
var shadowTwo = hostInDoc.createShadowRoot();
is(shadowOne.olderShadowRoot, null);
is(shadowTwo.olderShadowRoot, shadowOne);
var hostNotInDoc = document.createElement("div");
var shadowThree = hostNotInDoc.createShadowRoot();
is(shadowThree.olderShadowRoot, null);
var shadowFour = hostNotInDoc.createShadowRoot();
is(shadowThree.olderShadowRoot, null);
is(shadowFour.olderShadowRoot, shadowThree);
</script>
</body>
</html>
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