From d9e385714bbdc868a6f504d9eb3bf76c452d42e9 Mon Sep 17 00:00:00 2001
From: Ulf Gebhardt <ulf.gebhardt@webcraft-media.de>
Date: Tue, 29 Dec 2015 01:05:27 +0100
Subject: [PATCH] enabled caching for pictures

---
 system/HEADER.php | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/system/HEADER.php b/system/HEADER.php
index af50df8..77cd9cf 100644
--- a/system/HEADER.php
+++ b/system/HEADER.php
@@ -17,15 +17,19 @@ class HEADER {
             header('content-type: application/json');}}
     public static function PNG(){
         if(self::checkHeader()){
+            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60))); // 1 hour
             header('content-type:image/png;');}}
     public static function JPG(){
         if(self::checkHeader()){
+            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60))); // 1 hour
             header('content-type:image/jpeg;');}}
     public static function JPEG(){
         if(self::checkHeader()){
+            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60))); // 1 hour
             header('content-type:image/jpeg;');}}
     public static function GIF(){
         if(self::checkHeader()){
+            header('Expires: '.gmdate('D, d M Y H:i:s \G\M\T', time() + (60 * 60))); // 1 hour
             header('content-type:image/gif;');}}
     public static function JS(){
         if(self::checkHeader()){