Show HN: Uber clone demo with RethinkDB

It's pretty neat, nice example on what you can do with change feeds :)

One of the websocket fails though: WebSocket connection to 'ws://nearby-cabs.param.xyz/socket.io/?EIO=3&transport=websocket&sid=E00UJLl1JkxBXlhmAAAG' failed: Error during WebSocket handshake: Unexpected response code: 400