GWT provides History.onHistoryChange event to handle history but how
can we restore application state when a user clicks on Refresh button?
For example the user performed multiple actions on the web site and
then clicked refresh button. Now how using GWT History class we can
restore the same state?

Another question, is there a way to trap "Refresh" click before
actually the app refreshes and can be cancel the event?

Rajesh
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