Reverse proxy SSL, https redirecting to http

Configuration: With Apache configured as a SSL reverse proxy for keycloak auth server

Steps:

1) Access the keycloak auth deployment:
eg. https://auth.domain.com/auth/

2) Click the "Administration Console" text

Results: Forwarded to:
http://auth.domain.com/auth/realms/keycloak-admin/tokens/login?client_id=security-admin-console&redirect_uri=http%3A%2F%2Fauth.domain.com%2Fauth%2Fadmin%2Fkeycloak-admin%2Fconsole%2F&state=7c22b58e-2b36-4d94-8aea-a55cbc61bbb9&response_type=code

Expected: Maintain https:// protocol