HTTP/1.1 200 OKServer: nginx/1.12.0Date: Tue, 02 May 2017 07:20:57 GMTContent-Type: text/html; charset=UTF-8Connection: keep-aliveLast-Modified: Tue, 02 May 2017 06:57:29 GMTCache-Control: max-age=3, must-revalidateExpires: Tue, 02 May 2017 07:21:00 GMTVary: Accept-Encoding,CookieContent-Encoding: gzip