LayoutTests/fast/editing/selection-across-skipped-content.html

<style>
div {
  font-family: Monospace;
}
.skipped {
  height: 100px;
  width: 300px;
  outline: 1px solid green;  
  content-visibility: hidden;
}
</style>
<div id=selection_start>PASS if green box</div>
<div class=skipped>Skipped content. Should not get revealed through selection</div>
<div id=selection_end>is selected but the content inside is not.</div>
<script>
const selection = window.getSelection();
const range = document.createRange();
range.setStart(document.getElementById("selection_start"), 0);
range.setEnd(document.getElementById("selection_end"), 1);
selection.addRange(range);
</script>