MAGETWO-52593: Minicart does not clean when customer session is over

Author: Oleksandr Karpenko

app/code/Magento/Customer/Controller/Account/CreatePost.php

@@ -82,6 +82,16 @@ class CreatePost extends \Magento\Customer\Controller\AbstractAccount
      */
     private $accountRedirect;
 
+    /**
+     * @var \Magento\Framework\Stdlib\Cookie\CookieMetadataFactory
+     */
+    private $cookieMetadataFactory;
+
+    /**
+     * @var \Magento\Framework\Stdlib\Cookie\PhpCookieManager
+     */
+    private $cookieMetadataManager;
+
     /**
      * @param Context $context
      * @param Session $customerSession
@@ -144,6 +154,38 @@ public function __construct(
         parent::__construct($context);
     }
 
+    /**
+     * Retrieve cookie manager
+     *
+     * @deprecated
+     * @return \Magento\Framework\Stdlib\Cookie\PhpCookieManager
+     */
+    private function getCookieManager()
+    {
+        if (!$this->cookieMetadataManager) {
+            $this->cookieMetadataManager = \Magento\Framework\App\ObjectManager::getInstance()->get(
+                \Magento\Framework\Stdlib\Cookie\PhpCookieManager::class
+            );
+        }
+        return $this->cookieMetadataManager;
+    }
+
+    /**
+     * Retrieve cookie metadata factory
+     *
+     * @deprecated
+     * @return \Magento\Framework\Stdlib\Cookie\CookieMetadataFactory
+     */
+    private function getCookieMetadataFactory()
+    {
+        if (!$this->cookieMetadataFactory) {
+            $this->cookieMetadataFactory = \Magento\Framework\App\ObjectManager::getInstance()->get(
+                \Magento\Framework\Stdlib\Cookie\CookieMetadataFactory::class
+            );
+        }
+        return $this->cookieMetadataFactory;
+    }
+
     /**
      * Add address to customer during create account
      *
@@ -267,6 +309,12 @@ public function execute()
                 }
                 $resultRedirect = $this->accountRedirect->getRedirect();
             }
+            if ($this->getCookieManager()->getCookie('mage-cache-sessid')) {
+                $metadata = $this->getCookieMetadataFactory()->createCookieMetadata();
+                $metadata->setPath('/');
+                $this->getCookieManager()->deleteCookie('mage-cache-sessid', $metadata);
+            }
+
             return $resultRedirect;
         } catch (StateException $e) {
             $url = $this->urlModel->getUrl('customer/account/forgotpassword');