Use of window.showModalDialog() is deprecated. Use window.open() instead. For more help https://developer.mozilla.org/en-US/docs/Web/API/Window.open
L'uzo de window.showModaldealog() o l'é deprecou. Deuvia in cangio window.open(). Pe avei atre informaçioin amia https://developer.mozilla.org/en-US/docs/Web/API/Window.open