thin_man.js in thin_man-0.19.1

- old
+ new

@@ -276,10 +276,10 @@
         if(this.progress_indicator){
           this.progress_indicator.stop();
         } else if(!this.trigger_is_progress_target){
           this.progress_target.remove();
         }
-        if(this.$mask_target){
+        if(typeof this.mask != 'undefined'){
           this.mask.remove();
         }
         try{
           var response_data = JSON.parse(jqXHR.responseText)
         } catch(err) {