Hi,
I had a similar issue. I use a RichTextArea (which uses an
IFrame) inside a TabPanel. When I close the TabPanel I could not click
into other widgets (focus broken(?))
I solved this issue by using
"richTextArea.getFormatter().removeLink();" whiledestroying the TabPanel.
(The removeLink triggers some stuff inside the RichTextArea. I think u
could use another formatter method here)
Perhaps Its not an "exact" answer to your issue but perhaps someone else could use this info to solve his problem.