Re: [Ietf-message-headers] Requesting provisional registration for AMP-Cache-Transform header

Devin Mullins <twifkak@google.com> Sat, 23 February 2019 03:11 UTC

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From: Devin Mullins <twifkak@google.com>
Date: Fri, 22 Feb 2019 19:10:55 -0800
Message-ID: <CANjwSikC55QtfiDPhFZ1i4vx3sy6qYmn2q=nnRzbiPudMEjCKg@mail.gmail.com>
To: Mark Nottingham <mnot@mnot.net>
Cc: ietf-message-headers@lists.ietf.org
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Subject: Re: [Ietf-message-headers] Requesting provisional registration for AMP-Cache-Transform header
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Hi Mark, thanks for the reply. Just a short FYI, I replied with details to
ietf-http-wg last week. It is pending moderator approval; I contacted the
moderator & will let this list know the results of that discussion once
it's happened.

On Mon, Feb 4, 2019 at 7:45 PM Mark Nottingham <mnot@mnot.net> wrote:

> Hi Devin,
>
> Sorry for the delay; I saw this a while ago but didn't look into it
> deeply. For future reference, you're much more likely to get reviews if you
> send this to the HTTP WG mailing list (we're in the process of separating
> HTTP headers out into their own registry, in part to make that more clear).
>
> Without commenting on the entire document you link to, it says:
>
> > Therefore, the need arises for the origin to distinguish requests from
> users and requests from SXG intermediaries. That is, there is a difference
> between "I can understand the SXG format" and "I prefer an SXG if
> available". Accept: application/signed-exchange indicates the former. No
> currently-defined header indicates the latter.
>
> However, Accept *can* express that; e.g.,
>
> Accept: application/signed-exchange;q=1.0, */*;q=0.05
>
> Did you consider using qvalues in the accept header to achieve this?
>
> Cheers,
>
> P.S. It may be good to follow up on ietf-http-wg@w3.org, and then report
> the result back here. I haven't CC:ed them to avoid cross-posting.
>
>
>
> > On 7 Sep 2018, at 10:33 am, Devin Mullins <twifkak=
> 40google.com@dmarc.ietf.org> wrote:
> >
> > Header field name: AMP-Cache-Transform
> > Applicable protocol: http
> > Status: provisional
> > Author: Devin Mullins <twifkak@google.com>om>; Google;
> https://www.ampproject.org/
> > Specification:
> https://github.com/ampproject/amphtml/blob/master/spec/amp-cache-transform..md
> >
> > Let me know what other information I can provide.
> >
> > Thanks!
> > Devin
> > _______________________________________________
> > Ietf-message-headers mailing list
> > Ietf-message-headers@ietf.org
> > https://www.ietf.org/mailman/listinfo/ietf-message-headers
>
> --
> Mark Nottingham   https://www.mnot.net/
>
>