HTTP/1.1 200 OK Server: openresty/1.9.3.2 Date: Wed, 21 Nov 2018 06:58:06 GMT Content-Type: application/octet-stream Content-Length: 0 Last-Modified: Tue, 30 Oct 2018 11:18:23 GMT Connection: close ETag: "5bd83dff-0" Accept-Ranges: bytes