HTTP/1.1 200 OK Content-Type: application/pdf Last-Modified: Mon, 10 Jun 2019 07:04:17 GMT Accept-Ranges: bytes ETag: "80b84ab85a1fd51:0" Server: Microsoft-IIS/7.5 X-Powered-By: ASP.NET Date: Thu, 06 Feb 2020 21:22:56 GMT Content-Length: 0