OptionalacrOptionaldisplayThe desired user interface mode
OptionalmaxMaximum allowed time in seconds since the last End-User authentication.
OptionalresourceSpace-separated list of resources the access token should be scoped to
OptionalreturnURL to redirect to after a successful sign-up.
OptionalscopesSpace-separated list of scopes requested from the authorization server
OptionaluiUser's preferred languages and scripts for the user interface
An array of authentication context class references (ACRs).