- optional<string> error = get_from_url (String::compose("%1SMPTE-%2/%3", base, _type, *name), true, boost::bind (&DownloadCertificatePanel::load, this, _1));
+ auto error = get_from_url (String::compose("%1SMPTE-%2/%3", base, _type, *name), true, false, boost::bind(&DownloadCertificatePanel::load_certificate, this, _1));