HTTP/1.1 200 OK Date: Mon, 21 Jan 2019 18:37:58 GMT Server: nginx Content-Type: text/html Content-Length: 0 Last-Modified: Thu, 04 Aug 2016 06:57:33 GMT ETag: "57a2e75d-0" Accept-Ranges: bytes X-Via: 1.1 chengdianxin178:8 (Cdn Cache Server V2.0), 1.1 PSjsycdx6lo49:4 (Cdn Cache Server V2.0) Connection: keep-alive