From 0ac089cf8cea4c3d51f76666e7af15f5c32d6186 Mon Sep 17 00:00:00 2001
From: dafriend <davef@davefriend.com>
Date: Thu, 14 Nov 2019 21:53:54 -0600
Subject: [PATCH] Fix issue #2391 CodeIgniter::display404errors()

``CodeIgniter::display404errors`` calls Call to ``CodeIgniter::gatherOutput()`` causing a TypeError exception when ``$this->cachePage();`` is called with a null argument.

Fixed by instantiating a Cache config object in ``display404errors()`` and passing it to ``gatherOutput()``
---
 system/CodeIgniter.php | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/system/CodeIgniter.php b/system/CodeIgniter.php
index ae6fe77612a3..92e60e3fc38c 100644
--- a/system/CodeIgniter.php
+++ b/system/CodeIgniter.php
@@ -883,7 +883,8 @@ protected function display404errors(PageNotFoundException $e)
 				$this->runController($controller);
 			}
 
-			$this->gatherOutput();
+			$cacheConfig = new Cache();
+			$this->gatherOutput($cacheConfig);
 			$this->sendResponse();
 
 			return;