diff --git a/lib/less/browser.js b/lib/less/browser.js
index cba4c3b6..77e59ae1 100644
--- a/lib/less/browser.js
+++ b/lib/less/browser.js
@@ -233,7 +233,7 @@ function xhr(url, type, callback, errback) {
     xhr.send(null);
 
     if (isFileProtocol) {
-        if (xhr.status === 0) {
+        if (xhr.status === 0 || (xhr.status >= 200 && xhr.status < 300)) {
             callback(xhr.responseText);
         } else {
             errback(xhr.status, url);