From faeddd0da7eaeb5e97357939bb13b346c09e4647 Mon Sep 17 00:00:00 2001
From: Roan Kattouw <catrope@users.mediawiki.org>
Date: Mon, 31 Oct 2011 18:27:35 +0000
Subject: [PATCH] Prevent notice in OutputPage by casting to an array. This
 already exists on the WMF cluster as a live hack

---
 includes/OutputPage.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/includes/OutputPage.php b/includes/OutputPage.php
index 13672e9cb1..83faccc806 100644
--- a/includes/OutputPage.php
+++ b/includes/OutputPage.php
@@ -1640,7 +1640,7 @@ class OutputPage extends ContextSource {
 				$this->mVaryHeader[$header] = $option;
 			}
 		}
-		$this->mVaryHeader[$header] = array_unique( $this->mVaryHeader[$header] );
+		$this->mVaryHeader[$header] = array_unique( (array)$this->mVaryHeader[$header] );
 	}
 
 	/**
-- 
2.20.1