shadow-dom-mozilla-1066554.html

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This WPT test may be referenced by the following Test IDs:
- /mathml/relations/html5-tree/shadow-dom-mozilla-1066554.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html class="reftest-wait">

<meta charset="utf-8">

<title>Test for Mozilla bug 1066554 - Shadow DOM loads MathML stylesheets as needed</title>

<link rel="match" href="shadow-dom-mozilla-1066554-ref.html"/>

<body>

  <div id="x"></div>

  <script>

    function insertShadowMathML() {

      var x = document.getElementById("x");

      x.attachShadow({ mode: "open" });

      x.shadowRoot.innerHTML =

        '<math><msup><mi>X</mi><mi>X</mi></msup></math>';

      document.documentElement.removeAttribute("class");

    document.documentElement.addEventListener("TestRendered", insertShadowMathML);

  </script>

</body>

</html>