title: Stripe Sources sofort or giropay return url
body: <p>I am trying to implement payment via Stripe Source (Sofort and Giropay). Everything works fine, except one point:</p>
  
  <p>A user is redirected to the Sofort-Servers. When everything works fine and the user pays the money, he gets redirected to redirect[return_url] as expected. But if the user doesn't pay (for example he has no valid bankdata, or just cancels the payment), he also gets redirected to redirect[return_url].</p>
  
  <p>The problem is, that I dont know at this point, if the payment was successfull or not. So I dont know what to show the user: Payment successfull or redirect to checkout page. </p>