PKCE (RFC 7636)
Requiring clients to use PKCE for their authorization requests
Technical information about how to require OAuth 2.0 clients to use PKCE for their authorization requests with Authlete's feature.
Requiring clients to specify S256 when using PKCE for their authorization requests
Require OAuth 2.0 clients to specify S256 for code_challenge_method parameter when using PKCE for authorization requests with Authlete's feature.