gistfile1.js

function recognitionResult(event) {
  for (var i = event.resultIndex; i < event.results.length; ++i) {
    if (event.results[i].isFinal) {
      connection.send(event.results[i][0].transcript);
    }
  }
}

to =>

function recognitionResult(event) {
  for (var i = event.resultIndex; i < event.results.length; ++i) {
      connection.send(event.results[i][0].transcript);
  }
}