Add ability to show custom error message on Authorizenet place order

Author: ytorbyk

app/code/Magento/Authorizenet/Controller/Directpost/Payment/Place.php

@@ -15,6 +15,7 @@
 use Magento\Framework\Registry;
 use Magento\Payment\Model\IframeConfigProvider;
 use Magento\Quote\Api\CartManagementInterface;
+use Magento\Framework\Exception\LocalizedException;
 
 /**
  * Class Place
@@ -125,6 +126,9 @@ protected function placeCheckoutOrder()
                     'action' => $this
                 ]
             );
+        } catch (LocalizedException $exception) {
+            $result->setData('error', true);
+            $result->setData('error_messages', $exception->getMessage());
         } catch (\Exception $exception) {
             $result->setData('error', true);
             $result->setData('error_messages', __('Cannot place order.'));