From 38f56bff745c0010f5a3d0e13c2de33373616d0e Mon Sep 17 00:00:00 2001
From: Ben Coburn <btcoburn@silicodon.net>
Date: Wed, 15 Mar 2006 12:57:45 +0100
Subject: Enable '304 Not Modified' responses for CSS and JS.

darcs-hash:20060315115745-05dcb-6f50f3a070d2898ab51a32e59395631cab2ae09c.gz
---
 lib/exe/css.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

(limited to 'lib/exe/css.php')

diff --git a/lib/exe/css.php b/lib/exe/css.php
index 061df662d..ad47647f0 100644
--- a/lib/exe/css.php
+++ b/lib/exe/css.php
@@ -67,10 +67,15 @@ function css_out(){
         $files[DOKU_CONF.'userstyle.css'] = '';
     }
 
-    // check cache age 
+    // check cache age & handle conditional request
+    header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
+    header('Pragma: public');
     if(css_cacheok($cache,array_keys($files))){
+        http_conditionalRequest(filemtime($cache));
         readfile($cache);
         return;
+    } else {
+        http_conditionalRequest(time());
     }
 
     // start output buffering and build the stylesheet
-- 
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