LayoutTests/imported/w3c/web-platform-tests/requestidlecallback/resources/post_name_on_load.html - WebKit - Git at Google

 <!doctype html>
 <script>
   addEventListener('load', _ => {
     let params = new URLSearchParams(window.location.search);
     window.opener.postMessage(params.get('name'), '*');
   });
 </script>
	<!doctype html>
	<script>
	addEventListener('load', _ => {
	let params = new URLSearchParams(window.location.search);
	window.opener.postMessage(params.get('name'), '*');
	});
	</script>