--- loncom/interface/lonquickgrades.pm	2012/01/02 05:08:03	1.103
+++ loncom/interface/lonquickgrades.pm	2015/03/13 22:06:10	1.105
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Quick Student Grades Display
 #
-# $Id: lonquickgrades.pm,v 1.103 2012/01/02 05:08:03 raeburn Exp $
+# $Id: lonquickgrades.pm,v 1.105 2015/03/13 22:06:10 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -29,7 +29,7 @@
 package Apache::lonquickgrades;
 
 use strict;
-use Apache::Constants qw(:common :http);
+use Apache::Constants qw(:common :http REDIRECT);
 use POSIX;
 use Apache::loncommon;
 use Apache::lonlocal;
@@ -75,6 +75,14 @@ sub real_handler {
         return OK;
     }
 
+    # Check for critical messages and redirect if present.
+    my ($redirect,$url) = &Apache::loncommon::critical_redirect(300);
+    if ($redirect) {
+        &Apache::loncommon::content_type($r,'text/html');
+        $r->header_out(Location => $url);
+        return REDIRECT;
+    }
+
     # Send header, don't cache this page
     &Apache::loncommon::no_cache($r);
     $r->send_http_header;