function ajaxPerl() {
      $.ajax({
        method: 'GET', url: `../cgi-bin/test-dbi.pl`,
        dataType: 'json',
        header: {
          "content-type": "application/json;charset=utf-8"
        }
      }).then((response) => {
        console.log('RESPONSE -> ', response);
      }).catch((error) => {
        console.log('ERROR -> ', error);
      });
    }