selection/shadow-dom/cross-shadow-boundary-select-document-ref.html - external/github.com/web-platform-tests/wpt - Git at Google

 <!doctype html>
 <html>
   <div>CONTENT</div>
   <script>
     const div = document.querySelector("div");
     getSelection().setBaseAndExtent(div.firstChild, 0, div.firstChild, 2);
   </script>
 </html>
	<!doctype html>
	<html>
	<div>CONTENT</div>
	<script>
	const div = document.querySelector("div");
	getSelection().setBaseAndExtent(div.firstChild, 0, div.firstChild, 2);
	</script>
	</html>