--- loncom/auth/checkauthen.pm	2014/05/17 22:44:11	1.17
+++ loncom/auth/checkauthen.pm	2015/09/18 11:43:05	1.18
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # checks for a cookie to authenticate a user
 #
-# $Id: checkauthen.pm,v 1.17 2014/05/17 22:44:11 raeburn Exp $
+# $Id: checkauthen.pm,v 1.18 2015/09/18 11:43:05 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -47,6 +47,13 @@ sub handler {
         if ($r->user() eq '') {
             $r->user('public:public');
         }
+        return OK;
+    }
+
+    if ($r->uri() =~ m{^/res/adm/pages/reactionresponse/[^/]+\.html$}) {
+        if ($r->user() eq '') {
+            $r->user('public:public');
+        }
         return OK;
     }