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Re: #34: Alt-Svc-Used indicator granularity

From: Mark Nottingham <mnot@mnot.net>
Date: Wed, 28 Jan 2015 10:09:32 +1100
Cc: "Julian F. Reschke" <julian.reschke@gmx.de>, HTTP Working Group <ietf-http-wg@w3.org>
Message-Id: <F2400038-6C02-4C9C-976E-652C20B0F273@mnot.net>
To: Erik Nygren <erik@nygren.org>
Thanks, Erik.

Does anyone else have comment / concern here?

Cheers,


> On 28 Jan 2015, at 9:34 am, Erik Nygren <erik@nygren.org> wrote:
> 
> Sounds good to me as well.
> 
> Best regards, Erik
> 
> 
> On Wed, Jan 21, 2015 at 6:10 AM, Julian Reschke <julian.reschke@gmx.de> wrote:
> On 2015-01-21 07:01, Mark Nottingham wrote:
> <https://github.com/httpwg/http-extensions/issues/34>
> 
> We took a hum about this in HNL, where it seemed that most people needed more discussion.
> 
> The proposals we discussed were:
> 
> 1) no alt-svc-used indicator  (some support)
> 2) 1-bit indicator    (no support)
> 3) multi-bit indicator    (a little support - one hummer?)
> 4) full hostname    (some support)
> 5) 1-bit or full hostname   (some support)
> 6) don't know   (most "support")
> 
> Interestingly, though, there was no(!) support for the current solution, one bit.
> 
> How do people feel now?
> 
> My personal take -- From what I can tell, most of the uncertainty here is around the privacy properties of the indicator, and people seem to agree that the risk of abuse is present, but not severe.
> 
> That seems to indicate something like "SHOULD send the alternative service hostname in the Alt-Svc-Used header field value, unless the client has been explicitly configured not to send it."
> 
> This would allow browsers in privacy mode or similar to not send it, while still giving servers the kind of feedback they need; if a server really needs Alt-Svc-Used, they can 421 or drop the connection, and the client will stay where it was. In that sense, it's sort of in the spirit of #5.
> 
> How do people feel about that? Or, are there alternative (hah) proposals?
> ...
> 
> Sounds good to me.
> 
> Best regards, Julian
> 
> 

--
Mark Nottingham   https://www.mnot.net/
Received on Tuesday, 27 January 2015 23:09:56 UTC

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