tcplistener
Connecting to TCPListener from browser creates multiple TCPClients instead of one
I have TCPListener server based on this source code https://gist.github.com/leandrosilva/656054#file-server-cs
I created a server on port 3340. Whenever a client connects to the server, then server waits for the new client connection. When I connect from my Chrome browser to the server, then it seems there are three clients connected (expected only one). 
Why it is like that?
Solution
Most clients maintain multiple connections in parallel, including more than one connection per server endpoint.
And RFC7230 section-6.4 explains. Multiple connections are typically used to avoid the "head-of-line blocking" problem
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