// requests.
		spBytes, err := base64.StdEncoding.DecodeString(sp)
		if err != nil {
			// Base64 decoding fails, we should log to indicate
			// something is malforming the request sent by client.
			authNLogIf(GlobalContext, err, logger.ErrorKind)
			return nil, errAuthentication
		}
		claims.MapClaims[sessionPolicyNameExtracted] = string(spBytes)
	}

	return claims.Map(), nil
}