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Using HTML5 Web Storage for Interprocess Communication

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One of the exciting new features coming in HTML5 – and one that works in most HTML5 browsers today – is Web storage. The latest draft of the specification defines two types of Web storage: local storage and session storage. Local storage, which is analogous to isolated storage in Silverlight, persists data across browser sessions, and does it purely on the client side. It provides an easy-to-use mechanism for storing arbitrary data on the client and is a cost-efficient alternative to cookies. Session storage, by contrast, persists data only for the length of the browser session. Session storage
is useful for sharing data among pages hosted in the same browser window (it can’t span browser windows as local storage can), but I believe developers will generally find local storage more useful. One reason they’ll find it useful is that it offers a means for passing messages and data between browser instances – a freedom we’ve never really enjoyed without help from browser plug-ins such as Silverlight and Flash. Local storage is accessed through the browser’s window.localStorage property. The following statements detect the presence of local storage support in the host browser:   if ("localStorage" in...(Read whole news on source site)

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