java - How to maintain user data state when user is not logged in and the client machine crashes? -

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there web application shopping chart, user can pick products p1 page 1, p3 page 3 , p7 page 7.

he can move ahead , presented total amount , payment transaction take place. suppose user has selected products , computer crashes, again logs in find out he's product selection vanished. how manage handle such situation ?

you either go cookes or html 5 local storage. suggest latter.

have here detailed information: http://diveintohtml5.info/storage.html


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