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I'm trying to write a javascript web app that will communicate with a custom java server using AJAX. My client app needs to send pieces of data at irregeular intervals, sometimes multiple times per second, and does not need any response data from the server. Is there a way to keep an XmlHttpRequest connection open and reuse it to send this data without ever closing or getting a response? On the client side, I'm going by this post to reuse the XmlHttpRequest: http://keelypavan.blogspot.com/2006/03/reusing-xmlhttprequest-object-in-ie.html and it seems to be working. I'm able to send repeated requests to the server without getting a response. But on the server side my main problem seems to be with java.net.SocketServer. I'm creating a single SocketServer and putting the accept() method in an infinite loop to handle requests. When a request comes in, the loop fires exactly 3 times with the same request data - this is if and only if I don't write to the outputstre