HTTP/1.1 200 OK Server: nginx Date: Sun, 09 Aug 2020 16:53:50 GMT Content-Type: text/html Content-Length: 0 Connection: keep-alive Last-Modified: Wed, 13 May 2020 07:57:43 GMT ETag: "0-5a582ef51cbc0" Accept-Ranges: bytes Vary: User-Agent Cache-Control: private, max-age=600 Expires: Sun, 09 Aug 2020 17:03:50 GMT X-Frame-Options: SAMEORIGIN, ALLOW-FROM http://zczx.hnu.edu.cn X-Content-Type-Options: nosniff X-XSS-Protection: 1; mode=block Content-Language: zh-CN