attestationChallenge
Extracts the header OAuth-Client-Attestation-Challenge if the error is use_attestation_challenge.
Extracts the header DPoP-Nonce if the error is use_dpop_nonce.
Extracts the header OAuth-Client-Attestation-Challenge if the error is use_attestation_challenge.
Extracts the header DPoP-Nonce if the error is use_dpop_nonce.