title: Redirect with POST data
body: <p>I am working on a shopping cart with several payment options using different APIs.</p>
  
  <p>The flow I want is that the user chooses which payment option to use and the according form shows.</p>
  
  <p>On submit the form fields regarding address etc should be saved in my DB and the fields regarding payment is sent with POST to the payment handler api.</p>
  
  <p>It is important that the user only have to click once so the save-in-db has to be squeezed in between the click on the submit button and when the data is sent to the payment server.</p>
  
  <p>I have thought of a redirect where all data gets POSTED to and that save the data in DB and redirect to payment server BUT how do I redirect along with POST data (GET is not working unfortunately).</p>