From 7f59136568e1f1543450df7a4c168a9ac40825bb Mon Sep 17 00:00:00 2001
From: chenyj <2932802684@qq.com>
Date: Fri, 28 Feb 2020 15:05:34 +0800
Subject: [PATCH] bug: fix file might be undefined

---
 packages/vue-server-renderer/build.dev.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index 04c19919302..3347f6cbdb8 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -8848,7 +8848,7 @@ function mapIdToFile (id, clientManifest) {
     fileIndices.forEach(function (index) {
       var file = clientManifest.all[index];
       // only include async files or non-js, non-css assets
-      if (clientManifest.async.indexOf(file) > -1 || !(/\.(js|css)($|\?)/.test(file))) {
+      if (clientManifest.async.indexOf(file) > -1 || (file && !(/\.(js|css)($|\?)/.test(file)))) {
         files.push(file);
       }
     });