- From: Mark Nottingham <mnot@mnot.net>
- Date: Tue, 1 Mar 2022 10:57:42 +1100
- To: "Backman, Annabelle" <richanna@amazon.com>
- Cc: HTTP Working Group <ietf-http-wg@w3.org>
HTTP permits it, yes. It's considered questionable practice, though, because some implementations might not be able to make the distinction, and/or strip empty fields from the section. Cheers, > On 1 Mar 2022, at 10:30 am, Backman, Annabelle <richanna@amazon.com> wrote: > > In light of the discussion regarding support for absent header fields in HTTP Message Signatures, I'd like to ask the perhaps obvious question: does HTTP permit header fields to make a semantic distinction between the header field being absent from a message, and the header field being present with field value equal to the empty string? If so, are there real-world use cases that people are aware of for this that might help inform that discussion? > > Thanks! > > — > Annabelle Backman (she/her) > richanna@amazon.com > > > > -- Mark Nottingham https://www.mnot.net/
Received on Monday, 28 February 2022 23:58:04 UTC