Gravity Form AJAX not working

OK I really need help with this.

So I have a simple gravity form where it works the same way, regardless if I have AJAX ON or OFF. When looking at the Network Console, it doesn't refresh the page but it does reload the homepage, that is, it repaints the whole html again. http://ift.tt/1yrlquj Here is the screenshot

I don't have any captcha so that is not the issue.