code: function deleteCookie(cookieName) {
    if (getCookie(cookieName)) {
      document.cookie = cookieName + '=; Path=/; Expires=Thu, 01 Jan 1970 00:00:01 GMT;';
      _logger2.default.debug({
        description: 'Cookie deleted.', cookieName: cookieName, func: 'deleteCookie'
      });
    } else {
      _logger2.default.warn({
        description: 'Cookie cannot be deleted because it does not exist.',
        cookieName: cookieName, func: 'deleteCookie', obj: 'cookiesUtil'
      });
    }
  }
docs: @description Deletes cookie at domain's root path.
  @param {String} cookieName - cookie name