jquery判断数据是否为null，undefined或者为空字符串

Uncaught DOMException: Blocked a frame with origin 跨域问题解决方法

柴米油盐那点事儿: 我用的easyui,子页面用的【('部门管理['++']',deptListUrl,'icon-dept');】报错【:164 Uncaught DOMException: Blocked a frame with origin "" from accessing a cross-origin frame. at deptList (/uct/core/:164:19) at (/uct/core/:109:18) d】希望大佬指导一下