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Re: http://tools.ietf.org/html/draft-nottingham-httpbis-alt-svc as a normative reference in http/2

From: Patrick McManus <pmcmanus@mozilla.com>
Date: Wed, 19 Mar 2014 16:44:14 -0400
Message-ID: <CAOdDvNrpGHojRSCWx4G14EH5uY0gf0-5MaHqPfwiR9C85tUdrQ@mail.gmail.com>
To: William Chan (陈智昌) <willchan@chromium.org>
Cc: HTTP Working Group <ietf-http-wg@w3.org>
On Wed, Mar 19, 2014 at 4:18 PM, William Chan (陈智昌)

> On Wed, Mar 19, 2014 at 1:15 PM, William Chan (陈智昌) <willchan@chromium.org
> > wrote:
>> On Wed, Mar 19, 2014 at 1:09 PM, Patrick McManus <pmcmanus@mozilla.com>wrote:
>>> More pertinent of course is the fact that this is one plan for
>>> bootstrapping http/2 - and if its going to be used, like upgrade which I
>>> consider far messier, it should be documented to get consistency among
>>> those parties that wish to use it.
> Oops, I missed responding to this part. My understanding is that Rob was
> the main person looking to upgrading from HTTP/1.1 to HTTP/2 in cleartext,
> and that they prefer HTTP Upgrade. So if you're including this for his
> benefit, I think that may have been a mistake. But I should let Rob speak
> for himself.

I wasn't trying to suggest this should subsume upgrade for Rob's case - I
was trying, perhaps unclearly, to highlight the analogy between alt-svc and
upgrade and for that matter ALPN too. Upgrade is one method for
bootstrapping http/2 that we expect will be used in the wild and (even
though you and I don't intend to implement it). It does, imo. make sense to
document it so that those interested can have an interoperable definition.

The same can be said of ALPN and Alt-Svc.

I don't think you'll find the next alt-svc document particularly
threatening to the schedule - the header is just a different serialization
of the frame and importantly it also includes a necessary error code which
is relevant to resolving issues when following the frame as well as the
Received on Wednesday, 19 March 2014 20:44:41 UTC

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