Angular SweetAlert2，在显示ShowValidationError后关闭警报

Question

我正在使用SweetAlert2（https://sweetalert2.github.io/）在执行操作之前验证用户的密码。我的承诺很有效，验证服务器中的密码并返回true或false。 密码正确时，会显示警告，确认密码验证成功。 但是，当密码不正确时，sweetalert会停止并关闭而不执行操作。不执行操作是预期的行为，但我希望它保持显示消息以提醒用户输入的密码不正确。 swal.showValidationError似乎工作正常但警报不会保持活动状态以便用户重新输入密码。

任何人都可以看看下面的代码并指出我正确的方向吗？提前谢谢

$scope.confirmPublish = function(newsFormEdit, publish, trigger, updateReason){   
// Request password confirmation before Publishing a News. 
// After password is successfully confirmed the event is triggered    
    swal({
      title: $translate.instant("news_confirmPublish_title"),
      text: $translate.instant("news_confirmPublish_text"),
      type: 'warning',
      showCancelButton: true,
      confirmButtonText: $translate.instant("confirmPublish_confirmBtn"),
      cancelButtonText: $translate.instant("confirmPublish_cancelBtn"),
      confirmButtonClass: 'btn btn-success',
      cancelButtonClass: 'btn btn-danger',
      buttonsStyling: true
    }).then(function () {
        swal({
          title: 'Enter password to run ajax request',
          input: 'password',
          showCancelButton: true,
          confirmButtonText: 'Submit',
          showLoaderOnConfirm: true,
          preConfirm: (pass) => {
              return promisedPost('./service/verify_password.php', { pass })
                    .then(results => {
                        results = JSON.parse(results);
                        if (results.value === false) {
                            swal.showValidationError('Incorrect Password.');
                        } else {
                            return results;    
                        }
                    });
          },
          allowOutsideClick: () => !swal.isLoading()
        })
            .then((result) => {
            if (result.value) {
              if (trigger === "create") {
                $scope.createNews(newsFormEdit, publish);
              } else {
                $scope.updateNews(newsFormEdit, publish, updateReason);
              }
            swal({
              type: 'success',
              title: 'Ajax request finished!'
            });
            }
        })
    }, function (dismiss) {
      if (dismiss === 'cancel') {
        swal(
          'Cancelled',
          'Publish of news has been cancelled!',
          'error'
        )
      }
    })};