chromium/third_party/blink/web_tests/fast/forms/button/button-submit.html

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>Test case for checking firstChild.nodeType of a document</title>
<style type="text/css">
	button {display:none;}
</style>
</head>
<body>
<p>There should be no RED on the page</p>
<button id='button'></button>

<script type="text/javascript">
	if (document.getElementById('button').type !="submit") document.write("<p style=\"background-color:red;\">Wrong default type of BUTTON element</p>");
</script>
</body>
</html>