From c6a9848a17b7ac27f43a58c6cecacf905fab0cbc Mon Sep 17 00:00:00 2001
From: Harrison Shoff <hi@hshoff.com>
Date: Wed, 31 Jan 2018 19:59:41 -0800
Subject: [PATCH]  Add key to stylesheet links in Head.js (#425)

* Add key to config.stylesheets.map in Head.js

* Run prettier on Head.js
---
 lib/core/Head.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/core/Head.js b/lib/core/Head.js
index be65e59e70..93259a4d7f 100644
--- a/lib/core/Head.js
+++ b/lib/core/Head.js
@@ -85,8 +85,10 @@ class Head extends React.Component {
 
         {/* External resources */}
         {this.props.config.stylesheets &&
-          this.props.config.stylesheets.map(function(source) {
-            return <link rel="stylesheet" href={source} />;
+          this.props.config.stylesheets.map(function(source, idx) {
+            return (
+              <link rel="stylesheet" key={'stylesheet' + idx} href={source} />
+            );
           })}
         {this.props.config.scripts &&
           this.props.config.scripts.map(function(source, idx) {