Use abs_url() inside url::redirect() calls so that we don't just wind

up tacking onto the base url.

modules/notification/controllers/notification.php

@@ -31,6 +31,6 @@ class Notification_Controller extends Controller {
       notification::add_watch($item);
       message::success(sprintf(t("You are now watching %s"), html::purify($item->title)));
     }
-    url::redirect($item->url(array(), true));
+    url::redirect($item->abs_url());
   }
 }