From 344d6e173cd5b1f78552be462d272396c7827f42 Mon Sep 17 00:00:00 2001
From: Sam Minnee <sam@silverstripe.com>
Date: Thu, 16 Oct 2008 05:29:32 +0000
Subject: [PATCH] HTTP:add_cache_headers() - don't throw warning when  not
 passed

git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@64368 467b73ca-7a2a-4603-9d3b-597d59a354a9
---
 core/HTTP.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/HTTP.php b/core/HTTP.php
index ba897debd..28d4225af 100644
--- a/core/HTTP.php
+++ b/core/HTTP.php
@@ -280,7 +280,7 @@ class HTTP {
 	 */
 	static function add_cache_headers($body = null) {
 		// Validate argument
-		if(!($body instanceof HTTPResponse)) {
+		if($body && !($body instanceof HTTPResponse)) {
 			user_error("HTTP::add_cache_headers() must be passed an HTTPResponse object", E_USER_WARNING);
 			$body = null;
 		}