test_bug1361052.html

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<head>

  <title>Test for Bug 1361052</title>

  <script src="/tests/SimpleTest/SimpleTest.js"></script>

  <script src="/tests/SimpleTest/EventUtils.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=1361052">Mozilla Bug 1361052</a>

<p id="display"></p>

<div id="content" style="display: none">

</div>

<pre id="test">

<script class="testbody" type="application/javascript">

SimpleTest.waitForExplicitFinish();

SimpleTest.waitForFocus(() => {

  var strike = document.createElement("strike");

  strike.contentEditable = true;

  document.documentElement.appendChild(strike);

  var textarea = document.createElement("textarea");

  document.documentElement.appendChild(textarea);

  var h5 = document.createElement("h5");

  strike.appendChild(h5);

  textarea.setCustomValidity("A");

  document.documentElement.dir = "rtl";

  document.designMode = "on";

  document.execCommand("styleWithCSS", false, true);

  document.designMode = "off";

  textarea.reportValidity();

  document.documentElement.dir = "ltr";

  var range = document.createRange();

  range.selectNode(h5);

  window.getSelection().addRange(range);

  document.execCommand("inserthorizontalrule", false, null);

  ok(true, "No crash");

  SimpleTest.finish();

});

</script>

</pre>

</body>

</html>