Chrome UDP socket example
A simple Echo client
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[127.0.0.1:3007    ] [Connect]

               **o
                  ..
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Connects to UDP echo server at the given address. 

Each little dot represents a echo request.
When the request receives a reply, it shoots away and blows up.
When a request doesn't receive a reply, it grows into a big ball and blows up.

The dots gravitate towards each other for extra spiffiness.