The "NotAuthorized" exception (which is to be used in authorization callbacks) is not defined.  I propose to use the "
AuthorizationFailed" exception instead.


Re: NotAuthorized exception not defined

Also, authorization callbacks MUST be called, and completed, bofore the associated 'open' method (or so) can 
successfully return.  The open() MUST THEN also cause the "AuthorizationFailed" exception.