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Re: [draft-nottingham-http-link-header-06] relation-types

From: Sam Johnston <samj@samj.net>
Date: Tue, 25 Aug 2009 10:39:30 +0200
Message-ID: <21606dcf0908250139y6dd632a7u7f427dff9526ac85@mail.gmail.com>
To: Julian Reschke <julian.reschke@gmx.de>
Cc: Anne van Kesteren <annevk@opera.com>, Mark Nottingham <mnot@mnot.net>, HTTP Working Group <ietf-http-wg@w3.org>
On Tue, Aug 25, 2009 at 10:25 AM, Julian Reschke <julian.reschke@gmx.de>wrote:

> Anne van Kesteren wrote:
>
>> On Tue, 25 Aug 2009 10:08:55 +0200, Julian Reschke <julian.reschke@gmx.de>
>> wrote:
>>
>>> It will be invalid.
>>>
>>
>> As far as I can tell the draft does not define what it means for something
>> to be invalid. Even if it did, presumably that still leaves my remaining two
>> points.
>>
> > ...
>
> Invalid means invalid. The outcome is undefined.


In my mind a delimiter (e.g. colons, commas, etc.) must only appear once but
whitespace can appear repetitively, even with a mix - e.g. trailing space,
newline and tab where the list is long.

In terms of being conservative with what you send and liberal in what you
receive it would arguably be safest to allow for any combination of
whitespace characters but recommend that servers only ever use a single
space.

Compliance with current practices seems sensible too - declaring existing
working implementations invalid is rarely sensible.

Sam
Received on Tuesday, 25 August 2009 08:40:08 GMT

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