forcing chrome to reconnect to a website

For purposes like profiling site load speeds etc, making Chrome close connection to a web server and start over - 

https://stackoverflow.com/questions/37170812/force-chrome-to-close-re-open-all-tcp-tls-connections-when-profiling-with-the-ne

Go to

chrome://net-internals#sockets

and close idle sockets.

Also works for sessions opened with SSH tunnels, when we want to close the connection immediately.