Re: [secdir] Secdir last call review of draft-ietf-httpbis-early-hints-03

Mark Nottingham <mnot@mnot.net> Fri, 07 July 2017 09:33 UTC

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From: Mark Nottingham <mnot@mnot.net>
In-Reply-To: <20170707092316.GA27560@1wt.eu>
Date: Fri, 7 Jul 2017 19:33:17 +1000
Cc: Melinda Shore <melinda.shore@gmail.com>, Kazuho Oku <kazuhooku@gmail.com>, secdir <secdir@ietf.org>, draft-ietf-httpbis-early-hints.all@ietf.org, IETF Discussion Mailing List <ietf@ietf.org>, HTTP Working Group <ietf-http-wg@w3.org>
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References: <149919703750.15996.5462759432298024921@ietfa.amsl.com> <CANatvzx8GsvoYMscHciKNrOwRzcz1v7=jTCUUp4Z5E=jO9Wd6g@mail.gmail.com> <7273f8ab-c1ff-5dff-862e-0a1ead6d28b2@gmail.com> <20170707092316.GA27560@1wt.eu>
To: Willy Tarreau <w@1wt.eu>
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Subject: Re: [secdir] Secdir last call review of draft-ietf-httpbis-early-hints-03
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On 7 Jul 2017, at 7:23 pm, Willy Tarreau <w@1wt.eu> wrote:
> 
> Maybe the stronger wording should be oriented differently, such as
> "Servers MUST not send 103 to HTTP/1.0 clients nor to any client
> known not to support 1xx informational responses" ? This way it
> leaves the possibility opened (ie rely on version and/or user-agent
> or anything else once an exception is known).

RFC7231 already says "Since HTTP/1.0 did not define any 1xx status codes, a server MUST NOT send a 1xx response to an HTTP/1.0 client."


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Mark Nottingham   https://www.mnot.net/