From c2ea8d0ee9df2836555030c5bc7eea8ac8f30c79 Mon Sep 17 00:00:00 2001
From: logmanoriginal <logmanoriginal@users.noreply.github.com>
Date: Sun, 28 Aug 2016 13:09:45 +0200
Subject: [PATCH] [FileCache] Ignore 'format' when generating the file name

Previously for each requested format a new cache file was created,
though the data is the same. With this the file name no longer depends
on the requested output format.
---
 caches/FileCache.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/caches/FileCache.php b/caches/FileCache.php
index 2dc506b3..b6e04c37 100644
--- a/caches/FileCache.php
+++ b/caches/FileCache.php
@@ -88,6 +88,7 @@ class FileCache extends CacheAbstract{
         $this->isPrepareCache();
 
         $stringToEncode = $_SERVER['REQUEST_URI'] . http_build_query($this->param);
+        $stringToEncode = preg_replace('/(\?|&)format=[^&]*/i', '$1', $stringToEncode);
         return hash('sha1', $stringToEncode) . '.cache';
     }
 }