--- loncom/interface/lonsyllabus.pm	2021/05/04 18:47:36	1.150
+++ loncom/interface/lonsyllabus.pm	2022/09/18 22:33:45	1.151
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Syllabus
 #
-# $Id: lonsyllabus.pm,v 1.150 2021/05/04 18:47:36 raeburn Exp $
+# $Id: lonsyllabus.pm,v 1.151 2022/09/18 22:33:45 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -314,12 +314,8 @@ sub handler {
     if ($allowed) {
 #---------------------------------- Print External URL Syllabus Info if editing
         if ($target ne 'tex') {
-            my $hostname = &Apache::lonnet::hostname($homeserver);
-            my $protocol = $Apache::lonnet::protocol{$homeserver};
-            $protocol = 'http' if ($protocol ne 'https');
-            my $alias = &Apache::lonnet::use_proxy_alias($r,$homeserver);
-            $hostname = $alias if ($alias ne '');
-            my $link = $protocol.'://'.$hostname.$r->uri;
+            my $link = &Apache::lonnet::url_prefix($r,$cdom,$homeserver,'web').
+                       $r->uri;
             $r->print('<div class="LC_left_float">'
                      .'<span class="LC_help_open_topic LC_info">'
                      .'<span class="LC_info">'