/notfound_action
404 action

Sourcecode in Root/actions.js:
1:   function notfound_action() {
2:      res.data.title = root.getTitle() + " - 404 - not found";
3:      req.data.path = req.path;
4:      res.data.body = root.renderSkinAsString("notfound");
5:      (path.Site && path.Site.online ? path.Site : root).renderSkin("page");
6:      return;
7:   }