--- loncom/interface/lonnavmaps.pm	2017/02/20 18:29:22	1.528
+++ loncom/interface/lonnavmaps.pm	2017/03/08 02:51:08	1.529
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.528 2017/02/20 18:29:22 raeburn Exp $
+# $Id: lonnavmaps.pm,v 1.529 2017/03/08 02:51:08 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1688,9 +1688,10 @@ END
     # it contains a syllabus which uses an external URL
     # which points at an http site.
 
-    my ($is_ssl,$cdom,$cnum);
+    my ($is_ssl,$cdom,$cnum,$hostname);
     if ($ENV{'SERVER_PORT'} == 443) {
         $is_ssl = 1;
+        $hostname = $r->hostname();
     }
     if ($env{'request.course.id'}) {
         $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
@@ -1831,14 +1832,17 @@ END
 	    ($src,$symb,$anchor)=getLinkForResource($stack);
             my $srcHasQuestion = $src =~ /\?/;
             if ($env{'request.course.id'}) {
-                if (($src =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) && ($is_ssl) &&
+                if (($is_ssl) && ($src =~ m{^\Q/public/$cdom/$cnum/syllabus\E($|\?)}) &&
                     ($env{'course.'.$env{'request.course.id'}.'.externalsyllabus'} =~ m{^http://})) {
-                    my $hostname = $r->hostname();
                     if ($hostname ne '') {
                         $src = 'http://'.$hostname.$src;
                     }
                     $src .= ($srcHasQuestion? '&' : '?') . 'usehttp=1';
                     $srcHasQuestion = 1;
+                } elsif (($is_ssl) && ($src =~ m{^\Q/adm/wrapper/ext/\E(?!https:)})) {
+                    if ($hostname ne '') {
+                        $src = 'http://'.$hostname.$src;
+                    }
                 }
             }
 	    if (defined($anchor)) { $anchor='#'.$anchor; }