title: Ninja forms - After submission redirect using submission id
body: <p>I'm using Ninja forms 3.2.11.</p>
  
  <p>I created a form at this url www.mysite.it.</p>
  
  <p>How can I redirect user to www.mysite.it?submission={submission_id} after submit where {submission_id} is the form submission id I've just submitted?</p>
  
  <p>I tried using 'ninja_forms_after_submission' hook as doc said in this way:</p>
  
  <pre><code>add_action( 'ninja_forms_after_submission', 'my_ninja_forms_after_submission' );
  function my_ninja_forms_after_submission( $form_data ){
          $id = $form_data['actions']['save']['sub_id'];
          wp_redirect( "www.mysite.it?submission" . $id );
          exit;
  
  }
  </code></pre>
  
  <p>In this way ninja forms ajax submission function failed with 302 Not found and redirect not happens.</p>
  
  <p>Anyone knows what it's wrong?</p>