ENGCOM-2720: Fixed review list ajax if product not exist redirect to …

…404 page #13102 #15369

 - Merge Pull Request #15369 from Ananth747/magento2:Ananth747-patch-1
 - Merged commits:
   1. a1d0e3b
   2. b81bf67
   3. b0848c4
   4. f5bd1c6

app/code/Magento/Review/Controller/Product/ListAjax.php

@@ -14,17 +14,16 @@ class ListAjax extends ProductController
     /**
      * Show list of product's reviews
      *
-     * @return \Magento\Framework\View\Result\Layout
+     * @return \Magento\Framework\App\ResponseInterface|\Magento\Framework\Controller\ResultInterface|\Magento\Framework\View\Result\Layout
      */
     public function execute()
     {
         if (!$this->initProduct()) {
-            throw new LocalizedException(__('Cannot initialize product'));
-        } else {
-            /** @var \Magento\Framework\View\Result\Layout $resultLayout */
-            $resultLayout = $this->resultFactory->create(ResultFactory::TYPE_LAYOUT);
+            /** @var \Magento\Framework\Controller\Result\Forward $resultForward */
+            $resultForward = $this->resultFactory->create(ResultFactory::TYPE_FORWARD);
+            return $resultForward->forward('noroute');
         }
 
-        return $resultLayout;
+        return $this->resultFactory->create(ResultFactory::TYPE_LAYOUT);
     }
 }