c.scheme = scheme.Instance(strings.ToLower(c.Request.Url[0:i]))
	} else {
		return fmt.Errorf("missing protocol scheme in the request URL: %s", c.Request.Url)
	}

	var err error
	c.getClientCertificate, err = getClientCertificateFunc(c.Request)
	if err != nil {
		return err
	}
	c.secure = c.getClientCertificate != nil

	c.tlsConfig, err = newTLSConfig(c)
	if err != nil {
		return err
	}