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Re: Ticket 262: Discuss whether percent-decoding should also be done by receivers.

From: Mark Nottingham <mnot@mnot.net>
Date: Tue, 9 Nov 2010 13:13:11 +1100
Cc: Adam Barth <ietf@adambarth.com>, httpbis <ietf-http-wg@w3.org>
Message-Id: <971CBFFB-D5D4-4DD6-9C4E-877E94E12729@mnot.net>
To: Julian Reschke <julian.reschke@gmx.de>
I think we can close this as 'wontfix' for the current content-disposition spec, #245 <http://trac.tools.ietf.org/wg/httpbis/trac/ticket/245> noted that %xx in the filename isn't interoperable. If we add an appendix for error-handling, that might specify handling of percent-encoding, of course.


On 03/11/2010, at 4:55 PM, Julian Reschke wrote:

> On 03.11.2010 02:37, Mark Nottingham wrote:
>> ...
>> OTOH #1 has a fallback strategy; by placing the filename parameter first, a server can serve an internationalised filename to a UA that can use it, whilst falling back to a "vanilla" filename for those who don't. It's true that support for this isn't widespread now (according to<http://greenbytes.de/tech/tc2231/#attfnboth>), but at least there's a strategy in place for getting from here to there without breaking anything. To make it complete, I agree with the notion that we can warn servers away from generating filename parameters with literal % in them, because there's no interop there.
>> ...
> There's only one UA doing this wrong right now, and that's Firefox (for which a patch is available).
> Best regards, Julian

Mark Nottingham   http://www.mnot.net/
Received on Tuesday, 9 November 2010 02:13:43 UTC

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