去掉缺陷描述的图片点击显示大图后的蓝色边框

app/views/users/_project_issue.html.erb

@@ -141,7 +141,7 @@
                 image.wrap(element);
             }
         }
-        $('#activity_description_<%= user_activity_id %> a').colorbox({rel:'nofollow', close: "关闭"});
+        $('#activity_description_<%= user_activity_id %> a').colorbox({rel:'nofollow', close: "关闭", returnFocus: false});
     });
 
 </script>