Retain state when browser is refreshed

Hi I have 2 states - Login and Viewer
When app is launched, it goes to Login state.
When logged in, it switches to Viewer state
In Viewer state, when refreshing browser whole page is reloaded and Login form appears again.
I have tried to use Deeplinking, but this doesn't work.
Has anyone got an example how this can be achieved.
Thanks

You can store information in a SharedObject, and read this information in when the application loads. Use this data to determine the state your application should be in. A simplified form of the memento pattern would work well for this case.

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Retain state when browser is refreshed

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