HTTP/1.1 200 OK Date: Fri, 04 Oct 2019 10:19:58 GMT Content-Length: 0 Connection: keep-alive Server: Microsoft-IIS/8.5 X-Powered-By: ASP.NET X-Powered-By: ARR/2.5 X-Powered-By: ASP.NET X-Ser: BC72_dx-lt-yd-zhejiang-huzhou-3-cache-3, BC231_US-Colorado-Denver-1-cache-2, BC203_US-Colorado-Denver-1-cache-1 X-Cache: HIT from BC203_US-Colorado-Denver-1-cache-1(baishan)