From 889ffc0efc3d4699a9d516d579b89d957a43d734 Mon Sep 17 00:00:00 2001
From: Ed Sanders <esanders@wikimedia.org>
Date: Wed, 11 Jan 2017 10:10:03 -0800
Subject: [PATCH] DesktopArticleTarget: Prevent infinite while loop if $content
 is empty

Change-Id: I629b2c3f1a4af3441764db7d1d0a7cec96181396
---
 modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
index a4eb73d720..d035055750 100644
--- a/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
+++ b/modules/ve-mw/init/targets/ve.init.mw.DesktopArticleTarget.js
@@ -1258,7 +1258,7 @@ ve.init.mw.DesktopArticleTarget.prototype.transformPage = function () {
 
 	// Mark every non-direct ancestor between editableContent and the container as uneditable
 	$content = this.$editableContent;
-	while ( $content && !$content.parent().is( this.$container ) ) {
+	while ( $content && $content.length && !$content.parent().is( this.$container ) ) {
 		$content.prevAll().addClass( 've-init-mw-desktopArticleTarget-uneditableContent' );
 		$content.nextAll().addClass( 've-init-mw-desktopArticleTarget-uneditableContent' );
 		$content = $content.parent();