We see many attempts to bring Rich User experience - more of a- app like features to the modern browser users.
Numerous frameworks developed based on Java scripts handling browser DOM model to achieve Rich UI. These frameworks are currently leveraging the Asynchronous Requests to the server- AJAX. These requests are made from browser to server, however little research or development explored on the other way around - server pushing data to active browser sessions which would result in more of applet like applications on browser still proving better performance.
Comet - a new word - used to describe a web application model in which a long-held HTTP request allows a web server to push data to a browser, without the browser explicitly requesting it
There are many methods currently employed for this technique.
Example applications:
Google chat , Meboo
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