I am in favor of making it part of the base Oauth 2 spec, rather than defining 
this in a single token draft.  It seems something that SHOULD be part of the 
framework.

There's a 3rd option which would be to have a separate doc, but that seems a 
kludge.

-bill




>________________________________
> From: Hannes Tschofenig <[email protected]>
>To: "[email protected] WG" <[email protected]> 
>Sent: Monday, May 7, 2012 3:48 PM
>Subject: [OAUTH-WG] Error Registry Consensus Call
> 
>Hi all, 
>
>there is an open issue concerning draft-ietf-oauth-v2-bearer-19 that may 
>impact draft-ietf-oauth-v2-26 (depending on it's resolution) and we would like 
>to get feedback from the working group about it. 
>
>Here is the issue: When a client makes an access to a protected resources then 
>things may go wrong and an error may be returned in response. 
>draft-ietf-oauth-v2-bearer talks about this behavior. 
>
>That's great but these error codes need to be registered somewhere. Note that 
>the registry can be created in one document while the values can be registered 
>by many documents. 
>
>So, where should the registry be?
>
>There are two choices. 
>
>a) A new OAuth errors registry goes into draft-ietf-oauth-v2-bearer.
>
>b) draft-ietf-oauth-v2 expands the scope of the existing OAuth Errors registry 
>to encompass errors returned from resource servers.
>
>Currently, draft-ietf-oauth-v2 creates registries for error codes only for the 
>exchanges from A-to-D (symbols used from Figure 1 of draft-ietf-oauth-v2), but 
>excludes registration of errors from flows E-F.
>
>We must create a registry for error codes from flows E-F.  In which document 
>do we want to create this registry?
>
>So, give us your feedback whether you have a preference by the end of the 
>week. 
>
>Ciao
>Hannes & Derek
>
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