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Re: [Technical Errata Reported] RFC7540 (4663)

<d.stussy@yahoo.com> Thu, 14 April 2016 21:03 UTC

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To: Barry Leiba <barryleiba@computer.org>
From: d.stussy@yahoo.com
Resent-From: Yves Lafon <ylafon@w3.org>
Date: Tue, 12 Apr 2016 18:10:08 +0000
Cc: RFC Errata System <rfc-editor@rfc-editor.org>, Mark Nottingham <mnot@mnot.net>, Mike Belshe <mike@belshe.com>, Roberto Peon <fenix@google.com>, Martin Thomson <martin.thomson@gmail.com>, HTTP Working Group <ietf-http-wg@w3.org>
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Subject: Re: [Technical Errata Reported] RFC7540 (4663)
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It breaks the CGI interface, which per RFC 3875 is expecting the SERVER_PROTOCOL variable to contain "HTTP/2.0", not "HTTP/2".  It may also break any server log analysis tools which depend on the ANBF syntax as the variable may also appear in the logs.

RFC 3875, Section 4.1.16 ABNF:

   HTTP-Version      = "HTTP" "/" 1*digit "." 1*digit

The "minor" number is not optional.  If this has been changed, RFC 7540 needs to say so.  It doesn't.

Personally, I don't care if this is handled via an errata or another RFC which clarifies the conflict.

--------------------------------------------
On Tue, 4/12/16, Barry Leiba <barryleiba@computer.org> wrote:
I don't understand how it breaks anything: when you use HTTP/1.1, you have the minor version.  When you use HTTP/2, you're using a server that understands HTTP/2 and knows what to expect.  Please explain where the problem occurs.
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