Subj : Sharing Javascript objects between different XUL windows.
To   : netscape.public.mozilla.jseng
From : Peter Wilson
Date : Wed Dec 22 2004 08:06 pm

I am writing an editor which presents a view of a DOM object. In another 
tool window I cache a map of tree elements to the source nodes in the 
original DOM object.
The intention is that when a user selects a tree element in the tool I 
can map it back into the original DOM node using the Map.

It seems that when I switch focus away from the tool back to the main 
window all the objects in the map are quietly converted to different 
object. When I later retrieve (by id) objects from the cache the 
returned object is not === to the original DOM node. Otherwise it has 
all the properties of the expected node (it is not == either).

Anyone got any ides what is going on? This technique used to work 
several years ago when I first wrote this code.

Any other pointers to sharing objects between windows?

.