--- loncom/interface/loncommon.pm	2018/04/14 02:29:44	1.1312
+++ loncom/interface/loncommon.pm	2018/04/15 00:28:07	1.1313
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # a pile of common routines
 #
-# $Id: loncommon.pm,v 1.1312 2018/04/14 02:29:44 raeburn Exp $
+# $Id: loncommon.pm,v 1.1313 2018/04/15 00:28:07 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -5837,12 +5837,16 @@ sub CSTR_pageheader {
         $title = &mt('Authoring Space');
     }
 
+    my $target;
+    if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq 'iframe')) {
+        $target = ' target="_top"'; #FIXME lonpubdir: target="_parent"
+    }
+
     my $output =
          '<div>'
         .&Apache::loncommon::help_open_menu('','',3,'Authoring') #FIXME: Broken? Where is it?
         .'<b>'.$title.'</b> '
-        .'<form name="dirs" method="post" action="'.$formaction
-        .'" target="_top">' #FIXME lonpubdir: target="_parent"
+        .'<form name="dirs" method="post" action="'.$formaction.$target.'>'
         .&Apache::lonhtmlcommon::crumbs($uname.'/'.$parentpath,'_top','/priv/'.$udom,undef,undef);
 
     if ($lastitem) {