Ext.Msg.show({ title:'Save Changes?', message: 'You are closing a tab that has unsaved changes. Would you like to save your changes?', buttons: Ext.Msg.YESNOCANCEL, icon: Ext.Msg.QUESTION, fn: function(btn) { if (btn === 'yes') { console.log('Yes pressed'); } else if (btn === 'no') { console.log('No pressed'); } else { console.log('Cancel pressed'); } } });

¿Cómo agrego el "diálogo de cierre" de aria-label al ícono de cerrar en la parte superior?

No puedo agregar afterRender o oyentes

Versión: 3.4