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Re: [OAUTH-WG] Returning HTTP 200 on Error for JSONP

Mark Nottingham <mnot@mnot.net> Wed, 18 August 2010 22:47 UTC

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From: Mark Nottingham <mnot@mnot.net>
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Date: Thu, 19 Aug 2010 08:47:45 +1000
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To: Brian Eaton <beaton@google.com>
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Subject: Re: [OAUTH-WG] Returning HTTP 200 on Error for JSONP
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See:
  http://support.microsoft.com/kb/294807


On 19/08/2010, at 1:55 AM, Brian Eaton wrote:

> On Tue, Aug 17, 2010 at 11:36 PM, Mark Nottingham <mnot@mnot.net> wrote:
>>> The other reason people get funny with these status codes has to do
>>> with browser behavior.  Sometimes browsers react in funny ways to
>>> funny HTTP status codes.  To be on the safe side, developers tend to
>>> return an HTTP 200 with whatever they want the user to see.
>> 
>> Can you give concrete examples, please? What browsers do what exactly, under what circumstances?
> 
> Here's a well-known example:
> http://malektips.com/internet-explorer-8-disable-friendly-error-messages.html.
> 
> Fuzzier stuff is in handling of things like WWW-Authenticate headers
> on HTTP 200 responses, or 401s with unknown authorization challenges.


--
Mark Nottingham     http://www.mnot.net/

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