">One </span><span id="affected">two </span><span>threeâ€¦</span>
<script>
  // The first <span> style resolution shouldn't cause caching an empty set of matched properties that could be used with the spans that should be highlighted later.
  const node = document.body;
  let r = new Range();
  r.setStart(node, 1);
  r.setEnd(node, 3);
  CSS.highlights.set("foo", new Highlight(r));
</script>