--- loncom/auth/lonroles.pm	2018/05/28 23:26:12	1.338
+++ loncom/auth/lonroles.pm	2018/07/01 00:03:42	1.339
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # User Roles Screen
 #
-# $Id: lonroles.pm,v 1.338 2018/05/28 23:26:12 raeburn Exp $
+# $Id: lonroles.pm,v 1.339 2018/07/01 00:03:42 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -272,6 +272,12 @@ sub handler {
 
 # ================================================================== Roles Init
     if ($env{'form.selectrole'}) {
+        if (($env{'request.lti.login'}) && ($env{'request.lti.target'} eq '')) {
+            if ($env{'form.ltitarget'} eq 'iframe') {
+                &Apache::lonnet::appenv({'request.lti.target' => 'iframe'});
+                delete($env{'form.ltitarget'});
+            }
+        }
 
         my $locknum=&Apache::lonnet::get_locks();
         if ($locknum) { return 409; }