Authentication OAuth + PKCE, code challenge missing

Hi,

Does F5 APM implement PKCE (Proof Key for Code Exchange) ?

When I configure the bigip as an OAuth Client and ressource server, and generate an auth_code_request to my Authorization server, I obtain the error "code_challenge missing" from my server.

As the "code challenge" is derived from the "code verifier" how could I add it to the request ?

Regards,