Fastly Google This document defines the Proxy-Status HTTP header field to convey the details of errors generated by HTTP intermediaries. Note to Readers _RFC EDITOR: please remove this section before publication_ Discussion of this draft takes place on the HTTP working group mailing list (ietf-http-wg@w3.org), which is archived at https://lists.w3.org/Archives/Public/ietf-http-wg/ [1]. Working Group information can be found at https://httpwg.org/ [2]; source code and issues list for this draft can be found at https://github.com/httpwg/http-extensions/labels/proxy-status [3].