Reloading iframe after window collapse or expand

[gnagno]

Hi guys,
i'm using Ext js 3.4

I create a window with an iframe that load a jsp. When the user Collapse or Expand the window the jsp associated to the iframe is reloaded. Why does it happens?? Is it a Bug?

Is there a way to avoid the reload?

This the code that reproduce the problem:

               var win = new Ext.Window({
                    id:'testwin'
                    ,title: 'test win'
                    ,width:  700
,height:  450
,border:false
,modal:false
,constrainHeader:true
,collapsible:true
,maximizable:true
,items: [{
                        xtype : "component",
                        autoEl : {
                            tag : 'iframe',
                            style: 'width:100%;height:100%;background-color:#DFE8F6;',
                            frameborder: 0 ,
                            src :'test.jsp'
                        }
                    }]

                });
                win.show();

Best Regards

[Gary Schlosberg]

Duplicate:
http://www.sencha.com/forum/showthread.php?297237