add get

Author: engcom-Charlie

app/code/Magento/Wishlist/Controller/Shared/Allcart.php

@@ -10,6 +10,7 @@
 
 use Magento\Framework\App\Action\Action;
 use Magento\Framework\App\Action\Context;
+use Magento\Framework\App\Action\HttpGetActionInterface;
 use Magento\Framework\App\Action\HttpPostActionInterface;
 use Magento\Framework\Controller\Result\Forward;
 use Magento\Framework\Controller\Result\Redirect;
@@ -19,7 +20,7 @@
 /**
  * Wishlist Allcart Controller
  */
-class Allcart extends Action implements HttpPostActionInterface
+class Allcart extends Action implements HttpGetActionInterface, HttpPostActionInterface
 {
     /**
      * @var WishlistProvider