From 10f4954b4530a67d88c66ba8e397ee81487f4752 Mon Sep 17 00:00:00 2001
From: Max Kanat-Alexander <mkanat@bugzilla.org>
Date: Tue, 20 Jul 2010 20:34:41 -0700
Subject: Bug 428313: Properly expire the browser's CSS and JS cache when there
 are new versions of those files. This also eliminates single-file skins and
 should also allow Extensions to have skins. r=glob, a=mkanat

---
 .htaccess | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to '.htaccess')

diff --git a/.htaccess b/.htaccess
index 72a96e064..d4436e563 100644
--- a/.htaccess
+++ b/.htaccess
@@ -2,3 +2,14 @@
 <FilesMatch ^(.*\.pm|.*\.pl|.*localconfig.*)$>
   deny from all
 </FilesMatch>
+<FilesMatch (\.js|\.css)$>
+  ExpiresActive On
+  # According to RFC 2616, "1 year in the future" means "never expire".
+  # We change the name of the file's URL whenever its modification date
+  # changes, so browsers can cache any individual JS or CSS URL forever.
+  # However, since all JS and CSS URLs involve a ? in them (for the changing
+  # name) we have to explicitly set an Expires header or browsers won't
+  # *ever* cache them.
+  ExpiresDefault "now plus 1 years"
+  Header append Cache-Control "public"
+</FilesMatch>
-- 
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