From a2e2bf643a3b82c57c88a25c2b849b94952316b4 Mon Sep 17 00:00:00 2001
From: nfreear <nfreear>
Date: Fri, 7 Apr 2006 10:18:03 +0000
Subject: [PATCH] Fix MB 5099, "Make CSS requests expire in IE", fix 'max-age='
 as per http://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html, override
 $lastmodified parameter (OU-Bugz: 851)

---
 lib/weblib.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/lib/weblib.php b/lib/weblib.php
index 56fab91788..27da4fa2d2 100644
--- a/lib/weblib.php
+++ b/lib/weblib.php
@@ -2177,9 +2177,12 @@ function style_sheet_setup($lastmodified=0, $lifetime=300, $themename='', $force
 
     global $CFG, $THEME;
 
+    // Fix for IE6 caching - we don't want the filemtime('styles.php'), instead use now.
+    $lastmodified = time();
+
     header('Last-Modified: ' . gmdate("D, d M Y H:i:s", $lastmodified) . ' GMT');
     header('Expires: ' . gmdate("D, d M Y H:i:s", time() + $lifetime) . ' GMT');
-    header('Cache-control: max_age = '. $lifetime);
+    header('Cache-Control: max-age='. $lifetime);
     header('Pragma: ');
     header('Content-type: text/css');  // Correct MIME type
 
-- 
2.39.5