IE9 iframe窗口被删除后，will不能执行代码从释放的脚本?

In my application I created an iframe in my lightbox, when I open the lightbox after it will call parent window function and close the lightbox, in the parent window function will create and update some DOMs, and then When I go to back the parent window I try to access those DOMs it will throw an exception "script5011: Can't execute code from a freed script".In my application I created an iframe in my lig