HTTP/1.1 200 OK Server: nginx Date: Thu, 28 May 2020 18:05:00 GMT Content-Type: text/html Content-Length: 0 Connection: keep-alive Keep-Alive: timeout=60 X-Frame-Options: SAMEORIGIN Cache-Control: max-age=600 Expires: Thu, 28 May 2020 18:15:00 GMT Content-Language: zh-CN Strict-Transport-Security: max-age=63072000; includeSubDomains; preload Accept-Ranges: bytes