From 168635fb6fca359016033e319a076bf0adb9268e Mon Sep 17 00:00:00 2001
From: Tim Hunt <T.J.Hunt@open.ac.uk>
Date: Tue, 6 Feb 2018 12:09:43 +0000
Subject: [PATCH] MDL-61366 setuplib: safely construct the ajax renderer when
 needed

---
 lib/setuplib.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/setuplib.php b/lib/setuplib.php
index 8bd7623c1f3..8e9e9e16d06 100644
--- a/lib/setuplib.php
+++ b/lib/setuplib.php
@@ -366,7 +366,7 @@ function default_exception_handler($ex) {
             if (AJAX_SCRIPT) {
                 // If we are in an AJAX script we don't want to use PREFERRED_RENDERER_TARGET.
                 // Because we know we will want to use ajax format.
-                $renderer = $PAGE->get_renderer('core', null, 'ajax');
+                $renderer = new core_renderer_ajax($PAGE, 'ajax');
             } else {
                 $renderer = $OUTPUT;
             }