From feed74f3bd032f25bae6456005fcb312544ddcb4 Mon Sep 17 00:00:00 2001
From: Daniel Stockman <daniels@zillow.com>
Date: Tue, 19 Feb 2013 15:07:38 -0800
Subject: [PATCH] Fallback url() value for data-uri function should be quoted.

---
 lib/less/functions.js | 2 +-
 test/css/urls.css     | 2 +-
 test/less/urls.less   | 1 -
 3 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/less/functions.js b/lib/less/functions.js
index f987bb6f..da907568 100644
--- a/lib/less/functions.js
+++ b/lib/less/functions.js
@@ -429,7 +429,7 @@ tree.functions = {
                     console.warn("Skipped data-uri embedding of %s because its size (%dKB) exceeds IE8-safe %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB);
                 }
 
-                return new(tree.URL)(new(tree.Anonymous)(filePath));
+                return new(tree.URL)(new(tree.Quoted)("'" + filePath + "'", filePath));
             } else if (!this.env.silent) {
                 // if explicitly disabled (via --no-ie-compat on CLI, or env.ieCompat === false), merely warn
                 console.warn("WARNING: Embedding %s (%dKB) exceeds IE8's data-uri size limit of %dKB!", filePath, fileSizeInKB, DATA_URI_MAX_KB);
diff --git a/test/css/urls.css b/test/css/urls.css
index 1226e4d8..a43d95de 100644
--- a/test/css/urls.css
+++ b/test/css/urls.css
@@ -53,5 +53,5 @@
   uri-2: url('data:text/html,%3Ch1%3EThis%20page%20is%20100%25%20Awesome.%3C%2Fh1%3E%0A');
 }
 #data-uri-toobig {
-  uri: url(../data/data-uri-fail.png);
+  uri: url('../data/data-uri-fail.png');
 }
diff --git a/test/less/urls.less b/test/less/urls.less
index a047cc85..e80af254 100644
--- a/test/less/urls.less
+++ b/test/less/urls.less
@@ -47,7 +47,6 @@
   uri-2: data-uri('../data/page.html');
 }
 
-// so, weirdly, the browser output is quoted, the less output is UNquoted
 #data-uri-toobig {
   uri: data-uri('../data/data-uri-fail.png');
 }