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Re: Protocols/APIs and redirects

From: Anne van Kesteren <annevk@opera.com>
Date: Tue, 06 Dec 2011 12:22:32 +0100
To: "HTTP WG" <ietf-http-wg@w3.org>
Message-ID: <op.v52e7ubx64w2qv@annevk-macbookpro.local>
On Tue, 06 Dec 2011 12:14:24 +0100, Anne van Kesteren <annevk@opera.com>  
> When we design APIs (XMLHttpRequest) and protocols (CORS) that support  
> transparent redirects (redirects automatically followed by the API) what  
> exactly should count as a redirect as far as they are concerned?  
> Everything in the 3xx range that contains a Location header?
> E.g. for some part of CORS  
> http://dvcs.w3.org/hg/cors/raw-file/tip/Overview.html#actual-request we  
> explicitly fail if the response code is 301, 302, 303, or 307, because  
> we want the ability to support transparent redirects going forward.  
> Should we also fail if the response code is 310?
> Should  
> http://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#same-origin-request-event-rules  
> follow redirects for status codes other than 301, 302, 303, and 307?  
> Should it instead treat anything else as a network error so we can more  
> easily extend it in the future? If we do not treat it as a network error  
> the developer would just get back a response with a status code of 310  
> and the Location header and going forward we could never treat it as any  
> of the "blessed redirects" anymore.

It seems this question is related to  

> Aside: What happened to  
> http://lists.w3.org/Archives/Public/ietf-http-wg/2011JulSep/0014.html ?  
> I could not find the issue.

I could not find this issue in your database or in the mailing list  
archives since mnot said he would raise it. It was more or less by chance  
that I happened to look at it again because I vaguely recalled having  
raised a redirect issue earlier. I guess I did not use "NEW ISSUE" but  
then I did not know whether it was an issue when I started the thread. Can  
someone please fix this now?

Anne van Kesteren
Received on Tuesday, 6 December 2011 11:23:05 UTC

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