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

Adam Barth <ietf@adambarth.com> Tue, 08 January 2013 07:12 UTC

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From: Adam Barth <ietf@adambarth.com>
Date: Mon, 07 Jan 2013 23:11:31 -0800
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To: Julian Reschke <julian.reschke@gmx.de>
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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 Mon, Jan 7, 2013 at 6:19 PM, Julian Reschke <julian.reschke@gmx.de> wrote:
> 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.

Fair enough.

Adam

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