css/css-font-loading/fontfaceset-no-root-element.html

<!DOCTYPE html>
<title>CSS Font Loading test: Load Document FontFaceSet font without documentElement</title>
<link rel="help" href="https://drafts.csswg.org/css-font-loading/#font-face-set-load">
<link rel="help" href="https://crbug.com/971035">
<script>
  test(() => {
    document.documentElement.remove();
    var face = new FontFace("Ahem", "url(/fonts/Ahem.ttf)");
    document.fonts.add(face);
    document.fonts.load("12px Ahem");
  }, "Trigger font load after removing documentElement. Should not crash.");
</script>