long-animation-frame/resources/postMessage.html - external/github.com/web-platform-tests/wpt - Git at Google

 <!DOCTYPE html>
 <script>
 window.onload = () => {
     window.parent.postMessage("NEXT", "*");
 }
 </script>
	<!DOCTYPE html>
	<script>
	window.onload = () => {
	window.parent.postMessage("NEXT", "*");
	}
	</script>