message: Initialised asyncData to match clear
diff: @@ -11,7 +11,7 @@ class StateContext {
  state: State = null;
  data: any = {};
  url: string = null;
  - asyncData: any;
  + asyncData: any = undefined;
  title: string = null;
  history = false;
  crumbs: Crumb[] = [];
  