Hi, I created a datasource like follow:

dataSource: new $.ig.JSONPDataSource({
					dataSource: $widget.options.dataSource.remoteUrl,
					type: "remoteUrl",
					responseDataKey: "Results",
					callback: function (success, error) {
						if (!success) {
							alert(error);
						}
					},
					urlParamsEncoded: function (owner, params) {
						$.fc.igHelper.igSetOdataDateFilter(owner, params);
					}					
				})

but the callback method does not get fired if an error occurs.