HTTP/1.1 200 OK Server: none Date: Tue, 21 May 2019 12:20:31 GMT Content-Type: text/html Content-Length: 0 Connection: keep-alive X-Frame-Options: SAMEORIGIN Last-Modified: Tue, 21 May 2019 12:20:06 GMT Accept-Ranges: bytes Vary: User-Agent Cache-Control: private, max-age=600 Expires: Tue, 21 May 2019 12:30:06 GMT ETag: W/"0-58964de7d5fc4" Content-Language: zh-CN