I fully support any and all effort on this topic.

On Mon, 18 May 2026 at 17:58, Filip Skokan <[email protected]> wrote:

> Hello Nick,
>
> Let me know what you all think.
>
>
> Back at IETF 121 I presented this related/similar idea:
>
>    - https://youtu.be/_kNpecjcj64?t=6354
>    -
>    
> https://datatracker.ietf.org/meeting/121/materials/slides-121-oauth-sessa-client-id-hint-for-authorization-server-metadata-requests-00
>
> I haven't had a chance to follow up on it since
>
> S pozdravem,
> *Filip Skokan*
>
>
> On Mon, 18 May 2026 at 17:09, Nick Watson <nwatson=
> [email protected]> wrote:
>
>>
>> https://njwatson32.github.io/as-metadata-client-id/draft-watson-oauth-as-metadata-client-id.html
>>
>> I've written up a quick draft on supporting a client_id parameter on AS
>> Metadata, which would allow the AS to (1) do gradual rollouts of AS
>> metadata changes client by client and (2) customize metadata if necessary
>> (e.g. for clients participating in beta programs of upcoming drafts).
>>
>> AS can also choose to ignore the client_id parameter completely and
>> continue serving a statically cached global AS metadata file.
>>
>> I had this idea recently when implementing support for 9207 (iss
>> parameter) and running into poorly behaved clients handling these updates
>> badly. The draft I'm proposing would have allowed me to avoid making global
>> changes to AS metadata, and even do a synchronized rollout of returning
>> `iss` from the authorization endpoint and
>> declaring authorization_response_iss_parameter_supported.
>>
>> Let me know what you all think.
>>
>> Nick
>>
>> PS: I've also proposed the "reverse" of this for CIMD in this issue
>> <https://github.com/oauth-wg/draft-ietf-oauth-client-id-metadata-document/issues/78>
>> .
>>
>> --
>> Nick Watson | Software Engineer | [email protected] | (781) 608-3352
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