div is null when tab is close

Sep 3, 2013 at 1:34 PM
First thank you for this fine solution!

I'm encountering a problem when the web resource is inside a tab which starts closed when the form load. it gave "error in loading web resource div is null". its took me some time to realize it was the problem, when the form loads with the tabs open it works just fine.

Do you have any advice about succeed with preview even when its in close tab on first please.