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Re: [http-state] [Technical Errata Reported] RFC6265 (3444)

Julian Reschke <julian.reschke@gmx.de> Tue, 08 January 2013 02:19 UTC

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Date: Tue, 08 Jan 2013 03:19:18 +0100
From: Julian Reschke <julian.reschke@gmx.de>
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To: Adam Barth <ietf@adambarth.com>
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Cc: Pete Resnick <presnick@qti.qualcomm.com>, Bjoern Hoehrmann <derhoermi@gmx.net>, Eran Hammer <eran@hueniverse.com>, http-state <http-state@ietf.org>, Barry Leiba <barryleiba@computer.org>, RFC Errata System <rfc-editor@rfc-editor.org>
Subject: Re: [http-state] [Technical Errata Reported] RFC6265 (3444)
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On 2013-01-07 21:48, Adam Barth wrote:
> On Mon, Jan 7, 2013 at 12:28 PM, Barry Leiba <barryleiba@computer.org> wrote:
>>>>>> Happy to go that route.  So how about this correction?:
>>>>>>
>>>>>>      path-value        = *av-octet
>>>>>>      extension-av      = *av-octet
>>>>>>      av-octet          = %x20-3A / %x3C-7E
>>>>>>                        ; any CHAR except CTLs or ";"
>>>
>>> So you want to allow space but not tab, right?
>>
>> Well, that's what the current text ("any CHAR except CTLs") says.  If
>> we want to "fix" that, then now's the time, while we're
>> precisificatifying the ABNF.
>>
>> So, which should it be?:
>>
>> 1:  av-octet = %x20-3A / %x3C-7E    (allows space, but not tab)
>>
>> 2:  av-octet = %x21-3A / %x3C-7E    (allows neither space nor tab)
>>
>> 3:  av-octet = %x09 / %x20-3A / %x3C-7E    (allows both space and tab)
>
> This grammar is intentionally "loose" because there is such a wide
> variety of crazy Set-Cookie headers in the world.  Allowing tab
> doesn't seem harmful, so I'd recommend (3).

Big -1.

We're now changing the spec instead of fixing an editorial bug.

If we *really* want a change, this needs way more IETF review than an 
Erratum gets.

Best regards, Julian

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