Index: css.js
--- css.js Base (BASE)
+++ css.js Locally Modified (Based On LOCAL)
@@ -86,10 +86,12 @@
                 //other styles are ignored
                 var styles = $(this).html().match(/@import url\(['"](.*)['"]\)/gi);
                 for(var s in styles){
+                  if (typeof styles[s] == 'string') {
                     var item = styles[s].substring(13, styles[s].length - 2);
                     addItem(item);
                     self.sList.push(item);
                 }
+                }
             });
         }
         else{