From 115ec662b514c0dcbd1fc40648c4e11d09c949d7 Mon Sep 17 00:00:00 2001
From: Nick Howell <howellnick@gmail.com>
Date: Thu, 24 Sep 2015 22:35:04 -0400
Subject: [PATCH] Add 'use strict' to playpen.js

---
 src/librustdoc/html/static/playpen.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/librustdoc/html/static/playpen.js b/src/librustdoc/html/static/playpen.js
index ef8bdf5e2ce9..6b96a285992b 100644
--- a/src/librustdoc/html/static/playpen.js
+++ b/src/librustdoc/html/static/playpen.js
@@ -12,6 +12,8 @@
 /*globals $: true, rootPath: true */
 
 document.addEventListener('DOMContentLoaded', function() {
+    'use strict';
+
     if (!window.playgroundUrl) {
         return;
     }