--- loncom/lti/ltiauth.pm	2022/02/17 22:35:51	1.34
+++ loncom/lti/ltiauth.pm	2022/04/06 21:44:49	1.36
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Basic LTI Authentication Module
 #
-# $Id: ltiauth.pm,v 1.34 2022/02/17 22:35:51 raeburn Exp $
+# $Id: ltiauth.pm,v 1.36 2022/04/06 21:44:49 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -30,6 +30,7 @@ package Apache::ltiauth;
 
 use strict;
 use LONCAPA qw(:DEFAULT :match);
+use Encode;
 use Apache::Constants qw(:common :http);
 use Apache::lonlocal;
 use Apache::lonnet;
@@ -63,7 +64,7 @@ sub handler {
     my $params = {};
     foreach my $key (sort(keys(%env))) {
         if ($key =~ /^form\.(.+)$/) {
-            $params->{$1} = $env{$key};
+            $params->{$1} = &Encode::decode('UTF-8',$env{$key});
         }
     }
 #
@@ -232,6 +233,7 @@ sub handler {
                                 }
                                 if ($lti_in_use{'notstudent'} eq 'reject') {
                                     &invalid_request($r,'Information for valid user missing from launch request');
+                                    return OK;
                                 }
                             }
                         }
@@ -1127,7 +1129,7 @@ sub invalid_request {
         '<h3>'.&mt('Invalid LTI launch request').'</h3>'.
         '<p class="LC_warning">'.
         &mt('Launch of LON-CAPA is unavailable from the "external tool" link you had followed in another web application.').
-        &mt('Launch failed for the following reason:').
+        ' '.&mt('Launch failed for the following reason:').
         '</p>'.
         '<p class="LC_error">'.$msg.'</p>'.
         &Apache::loncommon::end_page());