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Re: #160: Redirects and non-GET methods

From: Julian Reschke <julian.reschke@gmx.de>
Date: Mon, 18 Jul 2011 17:18:28 +0200
Message-ID: <4E244EC4.6060802@gmx.de>
To: Yves Lafon <ylafon@w3.org>
CC: Mark Nottingham <mnot@mnot.net>, HTTP Working Group <ietf-http-wg@w3.org>
On 2011-07-18 17:00, Yves Lafon wrote:
> On Mon, 18 Jul 2011, Mark Nottingham wrote:
>
>>
>> On 18/07/2011, at 7:23 PM, Yves Lafon wrote:
>>
>>>> ? Safari/533.21.1 - all 301, 302, 307 rewritten to GET; 303 methods
>>>> are preserved
>>>> ? Firefox/5.0.1 - all 301, 302 rewritten to GET; 303 and 307 methods
>>>> are preserved
>>>> ? Chrome/14.0.814.0 - all 301, 302 rewritten to GET; 303 and 307
>>>> methods are preserved
>>>> ? Opera/11.50 - all 301, 302 rewritten to GET; 303 methods are
>>>> preserved; 307 tests crash the browser
>>>> ? MSIE/9.0 (latest) - all 301, 302 methods preserved except POST
>>>> (changed to GET); all 303, 307 methods are preserved
>>>>
>>>> So, many browsers rewrite many methods to GET on 301 and 302.
>>>> whereas most browsers preserve methods on 303 and 307*.
>>>
>>> Note that the results above are for the XHR-based test.
>>> I tried 307 for POST "natively"
>>> * For Opera/11.50 POST -> 307, popup to chose to redirect while
>>> preserving
>>> the method.
>>> * For Safari 5.0.5 (6533.21.1), POST redirected without a prompt to
>>> another POST on the new URI.
>>> * Firefox/5.0.1 redirect 307 preserving the method, and warn the user.
>>
>>
>> How are those different (besides not crashing Opera, of course)?
>
> Well, in XHR Safari rewrite all 307 methods to GET (from your report),
> not if done directly (POST -> 307 -> POST)

As far as I recall, Safari has different code paths, and the bug only 
applies to synchronous XHR (when does it get fixed? the bug report is 
almost three years old...).

> In Opera, you report that the method is preserved on 303 (so POST -> 303
> -> POST), while it is transformed in a GET "directly".

...but didn't you say:

"For Opera/11.50 POST -> 307, popup to chose to redirect while 
preserving the method."

Typo?

Best regards, Julian
Received on Monday, 18 July 2011 15:19:00 GMT

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