Fix a bug in IE6-8

yooSeeFly · Feb 16, 2013 · b70ac91 · b70ac91
1 parent 65d7533
commit b70ac91
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/config.js b/src/config.js
@@ -43,7 +43,7 @@ function config(data) {
     var prev = configData[key]
 
     // Merge object config such as alias, vars
-    if (isObject(prev)) {
+    if (prev && isObject(prev)) {
       for (var k in curr) {
         prev[k] = curr[k]
       }