Clean paReq, MD, paymentObject only after handling the paymentsDetails

call
Use redirectUrl for issuerUrl as well
Fix 3d secure flow

Gateway/Response/CheckoutPaymentsDetailsHandler.php

@@ -78,9 +78,5 @@ class CheckoutPaymentsDetailsHandler implements HandlerInterface
         // do not close transaction so you can do a cancel() and void
         $payment->setIsTransactionClosed(false);
         $payment->setShouldCloseParentTransaction(false);
-
-		$payment->unsAdditionalInformation('paymentData');
-		$payment->unsAdditionalInformation('paRequest');
-		$payment->unsAdditionalInformation('md');
     }
 }