Meta title issue fixed for product page

Author: Aasim Goriya

app/code/Magento/Catalog/Helper/Product/View.php

@@ -118,7 +118,8 @@ private function preparePageMetadata(ResultPage $resultPage, $product)
         $pageConfig = $resultPage->getConfig();
 
         $metaTitle = $product->getMetaTitle();
-        $pageConfig->setMetaTitle($metaTitle);
+        $productMetaTitle = $metaTitle ? $this->addConfigValues($metaTitle) : null;
+        $pageConfig->setMetaTitle($productMetaTitle);
         $pageConfig->getTitle()->set($metaTitle ?: $product->getName());
 
         $keyword = $product->getMetaKeyword();
@@ -294,4 +295,20 @@ public function prepareAndRender(ResultPage $resultPage, $productId, $controller
         $this->preparePageMetadata($resultPage, $product);
         return $this;
     }
+
+    /**
+     * @param string $title
+     * @return string
+     */
+    private function addConfigValues($title)
+    {
+        $preparedTitle = $this->scopeConfig->getValue(
+                'design/head/title_prefix',
+                \Magento\Store\Model\ScopeInterface::SCOPE_STORE
+            ) . ' ' . $title . ' ' . $this->scopeConfig->getValue(
+                'design/head/title_suffix',
+                \Magento\Store\Model\ScopeInterface::SCOPE_STORE
+            );
+        return trim($preparedTitle);
+    }
 }