/** * Event listener for HTTP server "listening" event. */ function onListening() { var addr = server.address(); var bind = typeof addr === 'string' ? 'pipe ' + addr : 'port ' + addr.port; // open web browser and navigate to address being served when starting the server var localURL = 'http://' + addr.address + ':' + addr.port; console.log('Server is live at: ' + localURL); opn(localURL); }