From 033b9cd5e2b465697bb5733acaddbe3db267a881 Mon Sep 17 00:00:00 2001
From: Daniel Friesen <dantman@users.mediawiki.org>
Date: Fri, 12 Aug 2011 08:40:34 +0000
Subject: [PATCH] Use jQuery's $.isArray, not instanceof Array. The later has
 troubles with cross-frame Array instances, and doesn't use the ES5 native
 method.

---
 resources/jquery/jquery.mwExtension.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/resources/jquery/jquery.mwExtension.js b/resources/jquery/jquery.mwExtension.js
index 82ca92491e..39273c1d99 100644
--- a/resources/jquery/jquery.mwExtension.js
+++ b/resources/jquery/jquery.mwExtension.js
@@ -43,7 +43,7 @@ jQuery.extend({
 			return false;
 		}
 		for ( var i = 0; i < arrThis.length; i++ ) {
-			if ( arrThis[i] instanceof Array ) {
+			if ( $.isArray(arrThis[i]) ) {
 				if ( !$.compareArray( arrThis[i], arrAgainst[i] ) ) {
 					return false;
 				}
-- 
2.20.1