File: test_shadowroot_inert_element.html

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<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=806506
-->
<head>
  <title>Test for inert elements in ShadowRoot</title>
  <script type="text/javascript" src="head.js"></script>
  <script 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=806506">Bug 806506</a>
<script>

SimpleTest.waitForExplicitFinish();

var content = '<div id="grabme"></div>';
createIframe(content).then(aDocument => {
  var element = aDocument.getElementById("grabme");
  var shadow = element.attachShadow({mode: "open"});

  // Check that <base> is inert.
  shadow.innerHTML = '<base href="http://www.example.org/" />';
  isnot(aDocument.baseURI, "http://www.example.org/", "Base element should be inert in ShadowRoot.");
  SimpleTest.finish();
});
</script>
</body>
</html>