From 459901319c40fecfaa8017c21ab9be9ace7a6602 Mon Sep 17 00:00:00 2001
From: Hannes Giesenow <hgiesenow@kuborgh.de>
Date: Wed, 27 Aug 2014 14:34:57 +0200
Subject: [PATCH] HTTP 1.1 equivalent to Pragma: no-cache

See http://stackoverflow.com/questions/10314174/difference-between-pragma-and-cache-control-headers for detailed explanation
---
 Controller/CaptchaController.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Controller/CaptchaController.php b/Controller/CaptchaController.php
index 8d2fb1c..345e447 100644
--- a/Controller/CaptchaController.php
+++ b/Controller/CaptchaController.php
@@ -54,6 +54,7 @@ class CaptchaController extends Controller
         $response = new Response($generator->generate($options));
         $response->headers->set('Content-type', 'image/jpeg');
         $response->headers->set('Pragma', 'no-cache');
+        $response->headers->set('Cache-Control','no-cache');
 
         return $response;
     }