--- loncom/auth/lonlogin.pm	2022/05/29 12:44:12	1.158.2.13.2.4
+++ loncom/auth/lonlogin.pm	2022/06/01 12:21:06	1.158.2.13.2.5
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Login Screen
 #
-# $Id: lonlogin.pm,v 1.158.2.13.2.4 2022/05/29 12:44:12 raeburn Exp $
+# $Id: lonlogin.pm,v 1.158.2.13.2.5 2022/06/01 12:21:06 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -443,7 +443,8 @@ sub handler {
             } else {
                 $tokenextras .= '&'.$name.'='.&escape($env{'form.'.$name});
                 if (($name eq 'linkkey') || ($name eq 'linkprot')) {
-                    if (($env{'form.retry'}) && (!$env{'form.ltoken'}) && ($name eq 'linkprot')) {
+                    if ((($env{'form.retry'}) || ($env{'form.sso'})) &&
+                        (!$env{'form.ltoken'}) && ($name eq 'linkprot')) {
                         $linkprot_for_login = $env{'form.linkprot'};
                     }
                     $tokentype = 'link';
@@ -902,7 +903,7 @@ ENDSAML
         my ($linkprotector,$linkproturi) = split(/:/,$linkprot_for_login,2);
         if (($linkprotector =~ /^\d+(c|d)$/) && ($linkproturi =~ m{^/+tiny/+$LONCAPA::match_domain/+\w+$})) {
             my $set_target;
-            if ($env{'form.retry'}) {
+            if (($env{'form.retry'}) || ($env{'form.sso'})) {
                 if ($linkproturi eq $env{'form.firsturl'}) {
                     $set_target = "    document.server.target = '_self';";
                 }