client-hints/resources/viewport-measurement.html - external/github.com/web-platform-tests/wpt - Git at Google

 <!DOCTYPE html>
 <script>
 (async () => {
   const response = await fetch("viewport.py");
   const body = await response.text();
   parent.postMessage(body, "*");
 })();
 </script>
	<!DOCTYPE html>
	<script>
	(async () => {
	const response = await fetch("viewport.py");
	const body = await response.text();
	parent.postMessage(body, "*");
	})();
	</script>