add new route for testing esi tag

local/modules/Front/Config/front.xml

@@ -13,6 +13,11 @@
         <default key="_view">includes/addedToCart</default>
     </route>
 
+    <route id="esi-minicart" path="/mini-cart">
+        <default key="_controller">Front\Controller\CartController::renderMiniCart</default>
+        <default key="_view">includes/mini-cart</default>
+    </route>
+
 
     <!-- Register -->
     <route id="customer.create.process" path="/register" methods="post">

local/modules/Front/Controller/CartController.php

@@ -142,4 +142,10 @@ class CartController extends BaseFrontController
         return $cartAdd;
     }
 
+    public function renderMiniCart()
+    {
+       $response = $this->render('includes/mini-cart');
+       return $response;
+    }
+
 }