SAML 2.0 Holder-Of-Key support?

Does Okta support the SAML 2.0 Holder-of-key token type when acting as an IdP for SSO? i.e. for this profile:
http://docs.oasis-open.org/security/saml/Post2.0/sstc-saml-holder-of-key-browser-sso.html

I have used Okta as a SAML IdP to issue Bearer token assertions and it works well, but trying to find out if HoK support is present? I don’t see any option to configure certs/tls settings in the SAML configurartion wizard, so not sure.

Thanks
Murali