--- loncom/interface/londocs.pm	2017/08/31 20:28:55	1.484.2.74
+++ loncom/interface/londocs.pm	2017/11/10 15:52:26	1.484.2.75
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.484.2.74 2017/08/31 20:28:55 raeburn Exp $
+# $Id: londocs.pm,v 1.484.2.75 2017/11/10 15:52:26 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -3746,7 +3746,7 @@ END
                     }
                 }
                 if ($url ne '') {
-                    $url.=(($url=~/\?/)?'&':'?').'symb='.&HTML::Entities::encode($shownsymb,'"<>&');
+                    $url.=(($url=~/\?/)?'&':'?').'symb='.&escape($shownsymb);
                 }
             } elsif (!$env{'request.role.adv'}) {
                 my $checkencrypt;