--- loncom/interface/lonnavmaps.pm	2018/12/29 23:24:40	1.545
+++ loncom/interface/lonnavmaps.pm	2020/03/03 01:17:48	1.548
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # Navigate Maps Handler
 #
-# $Id: lonnavmaps.pm,v 1.545 2018/12/29 23:24:40 raeburn Exp $
+# $Id: lonnavmaps.pm,v 1.548 2020/03/03 01:17:48 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1490,10 +1490,13 @@ sub render {
         if ($args->{'iterator_map'}) {
             my $map = $args->{'iterator_map'};
             $map = $navmap->getResourceByUrl($map);
-            my $firstResource = $map->map_start();
-            my $finishResource = $map->map_finish();
-
-            $args->{'iterator'} = $it = $navmap->getIterator($firstResource, $finishResource, $filterHash, $condition);
+            if (ref($map)) {
+                my $firstResource = $map->map_start();
+                my $finishResource = $map->map_finish();
+                $args->{'iterator'} = $it = $navmap->getIterator($firstResource, $finishResource, $filterHash, $condition);
+            } else {
+                return;
+            }
         } else {
             $args->{'iterator'} = $it = $navmap->getIterator(undef, undef, $filterHash, $condition,undef,$args->{'include_top_level_map'});
         }
@@ -1828,7 +1831,7 @@ END
                     }
                 } else {
                     my $deeplink = $navmap->get_mapparam(undef,$mapname,"0.deeplink");
-                    if (($deeplink eq 'absent') || ($deeplink eq 'grades')) {
+                    if ($deeplink =~ /^(absent|grades),/) {
                         if ($userCanSeeHidden) {
                             $args->{'mapUnlisted'} = 1;
                         } else {
@@ -1899,10 +1902,10 @@ END
             }
         }
         # If deep-link parameter is set (and is not set to full) suppress link
-        # unless priviliged user, or calling context is sequence, and parameter
+        # unless privileged user, or calling context is sequence, and parameter
         # set at map level
         if ((!$curRes->deeplink($args->{'caller'})) ||
-            ($curRes->deeplink($args->{'caller'}) eq 'full') || &advancedUser()) {
+            ($curRes->deeplink($args->{'caller'}) =~ /^full,/) || &advancedUser()) {
             $args->{'resource_nolink'} = 0;
         } else {
             $args->{'resource_nolink'} = 1;
@@ -1985,7 +1988,7 @@ END
                     $currentJumpDelta) {
                     # Jam the anchor after the <td> tag;
                     # necessary for valid HTML (which Mozilla requires)
-                    $colHTML =~ s/\>/\>\<a name="curloc" \/\>/;
+                    $colHTML =~ s/\>/\>\<a name="curloc" \>\<\/a\>/;
                     $displayedJumpMarker = 1;
                 }
                 $result .= $colHTML . "\n";
@@ -5146,14 +5149,17 @@ sub slot_control {
 }
 sub deeplink {
     my ($self,$caller) = @_;
-    if ($caller eq 'sequence') {
-        my @deeplink = $self->parmval("deeplink");
-        if ($deeplink[1] eq 'resource') {
-            return $deeplink[0];
+    my $value = $self->parmval("deeplink");
+    if ($value) {
+        my @deeplink = split(/,/,$value);
+        if ($caller eq 'sequence') {
+            if ($deeplink[1] ne 'res') {
+                return;
+            }
         }
-    } else {
-        return $self->parmval("deeplink");
+        return $deeplink[0];
     }
+    return;
 }
 
 # Multiple things need this