From 47da91d22f0799f8eedc160909efbbc6feda0afd Mon Sep 17 00:00:00 2001
From: Byron Jones <glob@mozilla.com>
Date: Tue, 18 Nov 2014 12:46:11 +0800
Subject: Bug 1100368: css concatenation breaks data: urls r=dylan,a=glob

---
 Bugzilla/Template.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Bugzilla/Template.pm b/Bugzilla/Template.pm
index 7ce1be72b..26ef37585 100644
--- a/Bugzilla/Template.pm
+++ b/Bugzilla/Template.pm
@@ -541,7 +541,9 @@ sub _css_url_rewrite {
     # rewrite relative urls as the unified stylesheet lives in a different
     # directory from the source
     $url =~ s/(^['"]|['"]$)//g;
-    return $url if substr($url, 0, 1) eq '/';
+    if (substr($url, 0, 1) eq '/' || substr($url, 0, 5) eq 'data:') {
+        return 'url(' . $url . ')';
+    }
     return 'url(../../' . dirname($source) . '/' . $url . ')';
 }
 
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