Form submission through Ajax (and prevent page refresh)

It would be great to have the form submission being done with Ajax in stead of page refresh, or at least that it would be optional. I have a page with multiple steps in different tabs, one tab being a form. When submitting this form the page refreshes and the user gets lost because the tabs start again on the first one. This is not very user friendly. I hope you can add this to your roadmap.