Summary
Server-side sessions are vital to securing data in a web or AJAX application. They help control the login process and are used to regulate data access. Client-side sessions are just as useful in controlling and regulating server access. Client-side sessions store the state of the client, and since this session object can be serialized and stored persistently in the database, it can later be retrieved to return the client to the state it was in the last time the user used the application. Such client-side session capabilities are underutilized or not used at all in most web and AJAX applications. Having been exposed to them, a new world of opportunities is open to you.
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