question: public static boolean isOpenIdConnectFragmentErrorType ( Set < String > requestedResponseTypes ) { return requestedResponseTypes . contains ( ID_TOKEN ) || requestedResponseTypes . contains ( TOKEN ) ; }
target:  When using the OpenId Connect authorization Implicit Flow the response_type value is "id_token token" or "id_token". When using the Hybrid Flow, this value is "code id_token", "code token", or "code id_token" token.