--- loncom/interface/lonextresedit.pm	2017/02/19 00:15:51	1.14
+++ loncom/interface/lonextresedit.pm	2017/03/08 02:51:08	1.15
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: lonextresedit.pm,v 1.14 2017/02/19 00:15:51 raeburn Exp $
+# $Id: lonextresedit.pm,v 1.15 2017/03/08 02:51:08 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -543,7 +543,7 @@ ENDFORM
 }
 
 sub display_editor {
-    my ($url,$folderpath,$symb,$idx,$type,$cdom,$cnum) = @_;
+    my ($url,$folderpath,$symb,$idx,$type,$cdom,$cnum,$hostname) = @_;
     my ($residx,$supplementalflag,$title,$pathitem,$output,$js,$navmap);
     if ($folderpath =~ /^supplemental/) {
         $supplementalflag = 1;
@@ -563,6 +563,9 @@ sub display_editor {
     }
     $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
     my $args = { 'force_register' => $env{'form.register'} };
+    if ($hostname) {
+        $args->{'hostname'} = $hostname;
+    }
     my $description = 'External Resource Editor';
     if ($type eq 'tool') {
         $description = 'External Tool Editor';