code: function _getDigiTrustQueryParams() {
    function getDigiTrustId () {
      var digiTrustUser = (window.DigiTrust && window.DigiTrust.getUser) ? window.DigiTrust.getUser(DT_CREDENTIALS) : {};
      return (digiTrustUser && digiTrustUser.success && digiTrustUser.identity) || '';
    };
  
    let digiTrustId = getDigiTrustId();
    // Verify there is an ID and this user has not opted out
    if (!digiTrustId || (digiTrustId.privacy && digiTrustId.privacy.optout)) {
      return {};
    }
    return {
      dt: digiTrustId.id
    };
  }
docs: TODO: use getConfig()