krajeeDialog.confirm on click event of a button

[leocharrua]

When the user clic a button, I need to show a confirm message before call some action.

PHP/HTML/YII2 PART:

Html::a('Optimizar', ['optimizar', 'id' => $model->id], ['onClick' => 'return confirmar_optimizar()']);

JAVASCRIPT PART:

function confirmar_optimizar() { 
    krajeeDialog.confirm('¿Está seguro de OPTIMIZAR este Camino?', 
       function (result) {
        if (result) { // ok button was pressed
            // execute your code for confirmation
            alert('OK');
            return true;
        } else { // confirmation was cancelled
            // execute your code for cancellation
            alert('CANCEL');
            return false;
        }
    });
}

But the callback event for krajeeDialog.confirm is asyncronic, then I don't have the result of the confirm for the click action ontime, and the action is allways executed.

Is there any way to handle this with krajeeDialog directly or a workaround?

Thanks