[Openid-specs-ab] Issue #977: How to handle an unsupported response_mode? (openid/connect)

[Vladimir Dzhuvinov]

New issue 977: How to handle an unsupported response_mode?
https://bitbucket.org/openid/connect/issues/977/how-to-handle-an-unsupported-response_mode

Vladimir Dzhuvinov:

[OAuth 2.0 Multiple Response Type Encoding Practices](http://openid.net/specs/oauth-v2-multiple-response-types-1_0.html) defines the `response_mode` parameter.

How should an OP that doesn't support a requested response mode, e.g. `form_post`, respond? With an `invalid_request` error, ignore (assume the default response mode), or otherwise?

Thanks,

Vladimir