From aa1750b3735f079afa9bc0811df631b39e3fab5b Mon Sep 17 00:00:00 2001
From: Szyszewski <szyszka90@users.noreply.github.com>
Date: Fri, 4 Sep 2015 01:19:44 +0200
Subject: [PATCH] Update http_cache.rst

Forgotten new Response instance in example from Validation with the Last-Modified Header  section.
---
 book/http_cache.rst | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/book/http_cache.rst b/book/http_cache.rst
index 7206a1952b3..66c68721aac 100644
--- a/book/http_cache.rst
+++ b/book/http_cache.rst
@@ -651,6 +651,7 @@ header value::
     namespace AppBundle\Controller;
 
     // ...
+    use Symfony\Component\HttpFoundation\Response;
     use Symfony\Component\HttpFoundation\Request;
     use AppBundle\Entity\Article;
 
@@ -665,6 +666,7 @@ header value::
 
             $date = $authorDate > $articleDate ? $authorDate : $articleDate;
 
+            $response = new Response();
             $response->setLastModified($date);
             // Set response as public. Otherwise it will be private by default.
             $response->setPublic();