Use of window.showModalDialog() is deprecated. Use window.open() instead. For more help https://developer.mozilla.org/en-US/docs/Web/API/Window.open
Ní mholtar window.showModalDialog() a úsáid a thuilleadh. Bain úsáid as window.open() ina ionad. Chun tuilleadh eolais a fháil, tabhair cuairt ar https://developer.mozilla.org/en-US/docs/Web/API/Window.open