Merge pull request #497 from Adyen/bug/fix-3ds1-magento-2.3.2

Add XMLHttpRequest into header line to fix issues on magento 2.3.2 & fix overlay for 3DS2

Controller/Process/Redirect.php

@@ -117,6 +117,7 @@ class Redirect extends \Magento\Framework\App\Action\Action
             $request = $this->getRequest();
             if ($request instanceof Http && $request->isPost()) {
                 $request->setParam('isAjax', true);
+                $request->getHeaders()->addHeaderLine('X_REQUESTED_WITH', 'XMLHttpRequest');
             }
         }
     }

view/frontend/web/css/styles.css

@@ -1223,7 +1223,7 @@
 
 
 .threeDS2Modal #threeDS2Container {
-    height: 100vh;
+    margin-bottom: 5rem;
 }
 
 .adyen-checkout__threeds2, .adyen-checkout__threeds2__challenge {