third_party/blink/web_tests/fast/history/resources/form-with-onclick-submit.html - chromium/src - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 Frame 1

 <script>document.write('<form name="testform" method="post" action="redirect-target.html#' + (history.length + 1) + '">');</script>
   <input type="button" id="submit-button" value="Submit" onClick="document.forms.testform.submit();">
 </form>

 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	Frame 1

	<script>document.write('<form name="testform" method="post" action="redirect-target.html#' + (history.length + 1) + '">');</script>
	<input type="button" id="submit-button" value="Submit" onClick="document.forms.testform.submit();">
	</form>

	</body>
	</html>