From 91f831cd0bfc36551d84f7c45e8652f9ea80087a Mon Sep 17 00:00:00 2001
From: Garion Herman <garion@silverstripe.com>
Date: Fri, 23 Oct 2020 16:31:50 +1300
Subject: [PATCH] ENH Improve scalar response handling

This resolves an issue where method_exists() was being called on scalar
response values, which is not supported in PHP 8.
---
 src/Control/Controller.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/Control/Controller.php b/src/Control/Controller.php
index 3cb1b9833..29c802a95 100644
--- a/src/Control/Controller.php
+++ b/src/Control/Controller.php
@@ -230,7 +230,9 @@ class Controller extends RequestHandler implements TemplateGlobalProvider
      */
     protected function prepareResponse($response)
     {
-        if ($response instanceof HTTPResponse) {
+        if (!is_object($response)) {
+            $this->getResponse()->setBody($response);
+        } elseif ($response instanceof HTTPResponse) {
             if (isset($_REQUEST['debug_request'])) {
                 $class = static::class;
                 Debug::message(