css/cssom-view/client-props-root-display-none-crash.html

<!DOCTYPE html>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width">
<link rel="help" href="https://drafts.csswg.org/cssom-view/#extension-to-the-element-interface">
<link rel="help" href="https://bugzilla.mozilla.org/show_bug.cgi?id=1655741">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
<link rel="author" title="Mozilla" href="https://mozilla.org">
<title>Shouldn't assert when asking for the client* props on the scrolling element</title>
<style>
  :root { display: none }
</style>
<script>
  document.scrollingElement.clientTop;
  document.scrollingElement.clientLeft;
  document.scrollingElement.clientHeight;
  document.scrollingElement.clientWidth;
</script>