From c56a51c4eb88ab20a620612222ecc7b8c8b3afcb Mon Sep 17 00:00:00 2001
From: James Gillmore <james@faceyspacey.com>
Date: Tue, 4 Jul 2017 14:55:35 -0700
Subject: [PATCH] fix($cssChunksMap): fix edge case with missing css files

---
 src/flushChunks.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/flushChunks.js b/src/flushChunks.js
index 255b043..ef7feb7 100644
--- a/src/flushChunks.js
+++ b/src/flushChunks.js
@@ -205,6 +205,7 @@ const createCssHash = (
   publicPath: string
 ): CssChunksHash =>
   Object.keys(assetsByChunkName).reduce((hash, name) => {
+    if (!assetsByChunkName[name]) return hash
     const file = assetsByChunkName[name].find(file => file.endsWith('.css'))
     if (file) hash[name] = `${publicPath}${file}`
     return hash