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Re: JSON headers

Julian Reschke <julian.reschke@gmx.de> Tue, 12 July 2016 04:51 UTC

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To: Carsten Bormann <cabo@tzi.org>
References: <8251.1468229350@critter.freebsd.dk> <e9a55629-656c-3b6a-3ac4-5fb7a109b2f0@gmx.de> <8739.1468234635@critter.freebsd.dk> <38b3e7bb-3202-f489-ff15-d4d545e13ca0@gmx.de> <8854.1468236033@critter.freebsd.dk> <326f0b93-dbd5-3dfb-2a35-d1bf084684b4@gmx.de> <9221.1468245597@critter.freebsd.dk> <aa9cee9c-d8e3-17ba-9fcd-e327575cd5a8@gmx.de> <9801.1468259070@critter.freebsd.dk> <15d27f23-6b51-1e8e-3f10-194c80570424@gmx.de> <20160711190107.GB9542@1wt.eu> <0e467573-4f68-80a5-14a4-5a63b41ac4d4@gmx.de> <57841F4A.30901@tzi.org>
Cc: Willy Tarreau <w@1wt.eu>, Poul-Henning Kamp <phk@phk.freebsd.dk>, Yanick Rochon <yanick.rochon@gmail.com>, Phil Hunt <phil.hunt@oracle.com>, HTTP Working Group <ietf-http-wg@w3.org>
From: Julian Reschke <julian.reschke@gmx.de>
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Date: Tue, 12 Jul 2016 06:45:33 +0200
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Subject: Re: JSON headers
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On 2016-07-12 00:35, Carsten Bormann wrote:
>> Inside a JSON *object*, the wire format allows multiple instances of the
>> same key (member name), and the recipient behavior for these cases is
>> undefined.
>
> That is a rather liberal use of "allows".  It definitely not "allowed",
> but it is sure *possible* to send malformed JSON.

It is allowed by the structure of the *wire format*.

The *specification* has a "SHOULD have unique names", but then, that's 
only a SHOULD (exactly because we know we can't rely on it, otherwise we 
wouldn't have the prose about what recipients can do with it).

 > ...

Best regards, Julian

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