i am saving data in the session
lets say every page relates to specific session data, like:
page 1 sets sess_x=1,
page 2 sets sess_x=2
but if i use the history.back or the browsers back-button i can go from page 
2 back to page 1 WITHOUT updating the session
so what i finally have is "page 2 where sess_x=1" and that screws up the 
logic at some point, since the session could not be updated because the page 
the user sees came from the browser cache, which didnt necessitate an 
interaction with the server, so the server "thinks" that the user sees 
another page 

how can i handle this stuff? or prevent it from happening?
or is my way of session handling weird?

thanks in advance


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