跨域请求头错误，后端设置Headers

Access-Control-Allow-Credentials: true
Access-Control-Allow-Headers: x-requested-with,token,content-type
Access-Control-Allow-Methods: POST, GET
Access-Control-Allow-Origin: http://192.168.10.250
Content-Length: 110
Content-Type: text/html; charset=UTF-8
Date: Wed, 20 Feb 2019 07:33:53 GMT
Server: TornadoServer/5.0.2