chromium/src/third_party/blink/web_tests/http/tests/misc/resources/submit-in-sibling-frame.html - manifest_repos/chromium_src - Git at Google

 <body>
 <form action="success-notify-parent.html" id="theform" method="post" name="theform" target="formframe"></form>
 <script>
 document.forms['theform'].submit();
 location.href = "success-notify-parent.html";
 </script>
	<body>
	<form action="success-notify-parent.html" id="theform" method="post" name="theform" target="formframe"></form>
	<script>
	document.forms['theform'].submit();
	location.href = "success-notify-parent.html";
	</script>