Tools/TestWebKitAPI/Tests/WebKit/open-window-then-write-to-it.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 <script>
 onload = () => {
     w = window.open("#", "name", "width=400,height=400")
     w.document.open();
     w.document.write("TEST");
     w.document.close();
 };
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	<script>
	onload = () => {
	w = window.open("#", "name", "width=400,height=400")
	w.document.open();
	w.document.write("TEST");
	w.document.close();
	};
	</script>
	</body>
	</html>