When trying to show notification without passing the ‘iconPath’ paramater, the notification is not displaying default application image.

try {
      var notificationDict = {
                  content : "This is a simple notificaiton.",
                  soundPath : "music/Over the horizon.mp3",
                  vibration : true
      };

      var notification = new tizen.StatusNotification("SIMPLE",
                  "Simple notification", notificationDict);
 } catch (err) {
      console.log (err.name + ": " + err.message);
 }