Here is a better fix for you, this works every time for me! Simply replace "YOUR URL HERE" with your URL.
<script type="text/javascript" src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>
<script type="text/javascript">
var eventposted=0;
$(document).ready(function(){
$('input.button').click(function() {
window.setInterval(foo, 100);
});
});
function foo(){
if(($(".form-submission-text").is(':visible')) && (eventposted==0)){
eventposted = 1;
window.location.href = "YOUR