message: send the failure message
diff: @@ -210,7 +210,7 @@ function doCommand(implicitTime = Date.now(), implicitCount = 0) {
  implicitCount = 0;
  implicitTime = "";
  - PlaybackState.setCommandState(id, CommandStates.Failed);
  + PlaybackState.setCommandState(id, CommandStates.Failed, result.result);
  console.error(result.result);
  } else {
  PlaybackState.setCommandState(id, CommandStates.Passed);
  