LayoutTests/fast/loader/form-submission-before-load-post.html

<form method="post" action="resources/form-submission-before-load-page2.html"></form>
<script>
if (window.testRunner) {
    testRunner.clearBackForwardList();
    testRunner.dumpBackForwardList();
    testRunner.dumpAsText();
    testRunner.waitUntilDone();
}
// Test that submitting the form, using a POST method, before the 'load' event
// results in the current session history item being replaced by the next one.
document.forms[0].submit();
</script>