Hi, need your help, i have two app in Extjs independents, an other app Exjt calls these two applications that render on a tabpanel whith a iframe, but second item tabpanel don't load correctly however the first item loading. This code is an example of the problem:

Code:
Ext.require(['*']); 
Ext.onReady(function(){ 
        new Ext.create('Ext.container.Viewport',{ 
                layout: 'fit', 
                //bodyStyle: 'padding: 10px', 
                items:[ 
                        { 
                                xtype: 'tabpanel', 
                                bodyPadding: 10, 
                                frame: true, 
                                border: true, 
                                //region: 'center', 
                                //margin: 10, 
                                         
                                items:[ 
                                        { 
                                                title: 'Prueba', 
                                                html: 'PRUEBA PANEL' 
                                        }, 
                                        { 
                                                xtype: 'component', 
                                                title: 'Notificaciones', 
                                                id: 'iframe-panel', 
                                                autoEl: { 
                                                        tag: 'iframe', 
                                                        width: '100%', 
                                                        height: '100%', 
                                                        focusOnLoad: true, 
                                                        frameborder: 0, 
                                                        src: 'http://docs.sencha.com/ext-js/4-0/' 
                                                } 
                                        } 
                                ] 
                        } 
                ] 
        }); 
});
Thanks