This example uses https://github.com/nsf/bin2go to embed assets. To make sure it's installed, run
go get github.com/nsf/bin2go
and put the resulting bin2go in PATH.
To run the example:
./run
or, to select another port:
./run -port=8888
Then open two browser windows to http://localhost:8000/ , change your name from J. Doe to something more distinct, and type messages. See how they are transmitted to the other browser window.
See the browser's Javascript console for a debug log of incoming and outgoing messages.