问题复现的步骤。
1、下载固件 GL.iNet download center 并刷入 gl-mifi
2、进入 http://192.168.8.1/cgi-bin/luci/admin/network/iface_add 添加接口。内容随意填写
3、提交以后，提示如下内容
Form token mismatch
The submitted security token is invalid or already expired!
In order to prevent unauthorized access to the system, your request has been blocked. Click “Continue »” below to return to the previous page.
4、初步判断是页面多了一段 csrf token
