This is a theoretical question and I suspect the hair may not be worth  
it, but has anyone given thought to persistent sessions?  The idea is  
that you have a public page which is a separate tree from the live  
site (I do this) and when someone logs in, instead of creating a new  
tree you restore an existing tree and redirect to the last known URL  
for that session.  You can record this URL and the session state on  
timeout or on log out.

When a session has timed out, you can at least return the user to the  
page they were at along with the application state and a message  
saying 'you timed out, please log back in' and then put them back  
where they were.

All you need to store on timeout is the last known URL (for fresh  
logins) and the widget tree along with any app-specific session state.

How hard would it be to serialize widgets?  (I wonder if my Elephant  
contrib, the snapshot set, would just do the right thing...)

Any hitches I'm missing?

Ian

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