code: function (sRoute, oData) {
  			var oHistory = History.getInstance();
  			var oPrevHash = oHistory.getPreviousHash();
  			if (oPrevHash !== undefined) {
  				window.history.go(-1);
  			} else {
  				var bReplace = true; // otherwise we go backwards with a forward history
  				this.navTo(sRoute, oData, bReplace);
  			}
  		}
docs: mobile nav back handling