From 6a49669d0fca130554ec1e1d2133b030c07c8371 Mon Sep 17 00:00:00 2001
From: GoalSmashers <jakub@goalsmashers.com>
Date: Tue, 4 Jun 2013 20:21:07 +0200
Subject: [PATCH] Fixes #110 - do not strip parentheses for data URIs in url()
 declaration.

---
 lib/clean.js      | 2 +-
 test/unit-test.js | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/clean.js b/lib/clean.js
index 859cf114..68e49cee 100644
--- a/lib/clean.js
+++ b/lib/clean.js
@@ -92,7 +92,7 @@ var CleanCSS = {
 
     // strip parentheses in urls if possible (no spaces inside)
     replace(/url\((['"])([^\)]+)['"]\)/g, function(match, quote, url) {
-      if (url.match(/[ \t]/g) !== null)
+      if (url.match(/[ \t]/g) !== null || url.indexOf('data:') === 0)
         return 'url(' + quote + url + quote + ')';
       else
         return 'url(' + url + ')';
diff --git a/test/unit-test.js b/test/unit-test.js
index 7f55860b..bf29f0ec 100644
--- a/test/unit-test.js
+++ b/test/unit-test.js
@@ -559,6 +559,7 @@ vows.describe('clean-units').addBatch({
   }),
   'urls': cssContext({
     'keep urls without parentheses unchanged': 'a{background:url(/images/blank.png) 0 0 no-repeat}',
+    'keep urls with data URI unchanged': ".icon-logo{background-image:url('data:image/svg+xml;charset=US-ASCII')}",
     'strip single parentheses': [
       "a{background:url('/images/blank.png') 0 0 no-repeat}",
       "a{background:url(/images/blank.png) 0 0 no-repeat}"
-- 
2.34.1