[2.2] Ext.History - is it possible to suspend Event history back properly ?

Hi,

I have many difficult to use Ext.History.

I can determine on event change if back url is my tag or not with token (OK)
But when I use iFrame to open url on it, nothing work as well

I try find on forum some people who have same difficult but found nothing.

Do you have an idea may be for suspend Ext.history when I give focus on my Iframe...

thanks