[by DazzlingBeing]

Track the source of Ext.layout.container.Table.js,
in the function 'renderChildren' I found:


// If at the end of a row, remove any extra cells

if (!cells[i + 1] || cells[i + 1].rowIdx !==...

[by DazzlingBeing]

this is happend only in ie8.
when change the table's layout column, item in the column disappeared.
This is a very simple page, I create a view with table layout, and then put 8 buttons in it, then...

[by DazzlingBeing]

I try this with ie10/firefox18/chrome24 in window8, and my mates try this with ie8 in window xp, both are freezing the explorer.
The firefox forced stop the javascript and gave that info, it...

[by DazzlingBeing]

just run the portal.html in portal demo with firefox/chrome/ie.
when click the collapse button in Options panel, a dump occurs and javascript runs busy.
In firefox you can get this info:

...

[by DazzlingBeing]

In Extjs4's portal demo, I rewrite the getTools function to demenstrate maximize, the code is here:
getTools: function(){
return [{
xtype: 'tool',
type:...