How do I get socket.io running for a subdirectory

In my server I had to

var io = require('socket.io')(httpServer, {path: '/mysubdir/socket.io'})`

In my client I had to

<script src="http://www.example.com/mysubdir/socket.io/socket.io.js"></script>

and also

var socket = io.connect('http://www.example.com', {path: "/mysubdir/socket.io"});`