focus-restore not defined

Solved it by extending FilterForm: public class FilterForm extends org.apache.wicket.extensions.markup.html.repeater.data.table.filter.FilterForm { private static final long serialVersionUID = 1L; public FilterForm(String id, IFilterStateLocator locator) { super(id, locator); super.remove("focus-restore"); add(new AbstractBehavior() { private static final long serialVersionUID = 1L; @Override public void renderHead(IHeaderResponse response) { super.renderHead(response); response.renderOnDomReadyJavascript("_filter_focus_restore('" +getFocusTrackerFieldCssId()+ "');"); } }); } }