Cannot enter valid url as Native Application redirect uri
Changing http to test (e.g. test://localhost:8080/register) causes the validation to succeed.
Because of this it is not possible to set a redirect uri for native applications.
http:// and https:// schemes are not supported in custom redirect:
According to the RFC, this should support it... (see: https://tools.ietf.org/html/rfc8252#section-7.3 )
If you would like to use those schemes, you should add a web platform:
This is definitely a bad answer because the Web Platform claims the client_secret which induces security problems and is strongly discouraged on Native Application.
http:// and https:// schemes are not supported in custom redirect URIs for native apps. If you would like to use those schemes, you should add a web platform.
Hope that helps!