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Re: [access-control] non-GET threat model and authorization choreography

From: Henri Sivonen <hsivonen@iki.fi>
Date: Tue, 9 Oct 2007 15:36:34 +0300
Message-Id: <1158EEBD-0F68-49A2-AF8D-9C4A76E35512@iki.fi>
Cc: Anne van Kesteren <annevk@opera.com>, Jonas Sicking <jonas@sicking.cc>, public-appformats@w3.org
To: Thomas Roessler <tlr@w3.org>

On Oct 9, 2007, at 15:22, Thomas Roessler wrote:

> The POST might change the state of that resource.
>
> Why do we believe that it won't change the access-control policy
> associated with the resource?

What would be associated with the URI in a way that bypasses HTTP  
caching is knowledge about the capability of the server-side app to  
deal with cross-domain POSTs. It would be radically abnormal for an  
app to lose its capability to deal with cross-domain POSTs as the  
result of an earlier POST.

OTOH, having a time-to-live value for the cross-domain method  
authorization makes sense, because services may otherwise change over  
time.

-- 
Henri Sivonen
hsivonen@iki.fi
http://hsivonen.iki.fi/
Received on Tuesday, 9 October 2007 12:37:00 GMT

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