> Why mention a specific error condition at all? How about just:
>
> "Identity Provider implementations MUST/SHOULD support the issuance of
> <saml2p:Response> messages (with appropriate status codes) in the event of
> an error condition, provided that the user agent remains available and an
> acceptable location to which to deliver the response is available."
I was concerned that "error condition" would be so broad as to reintroduce
the same set of questions about whether to respond, but if you think the
rest of the text is clear enough about that, I'm ok with it.
-- Scott