From 5d99f343480fc4de7fa9a455dda3816970ced286 Mon Sep 17 00:00:00 2001
From: Christoph Bessei <28066477+christoph-bessei@users.noreply.github.com>
Date: Tue, 3 Nov 2020 12:23:28 +0100
Subject: [PATCH] Backport SSR bugfix when manifest files are missing:
 https://github.com/vuejs/vue/pull/11609

Also change build.dev.js to avoid the build process of Vue.js
---
 packages/vue-server-renderer/build.dev.js              | 10 +++++++---
 .../template-renderer/create-async-file-mapper.js      |  6 +++++-
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/packages/vue-server-renderer/build.dev.js b/packages/vue-server-renderer/build.dev.js
index fb4caf51154..bfb6d80f14c 100644
--- a/packages/vue-server-renderer/build.dev.js
+++ b/packages/vue-server-renderer/build.dev.js
@@ -8848,8 +8848,12 @@ 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)($|\?)/.test(file))) {
-        files.push(file);
+      if (
+        file &&
+        (clientManifest.async.indexOf(file) > -1 ||
+          !/\.(js|css)($|\?)/.test(file))
+      ) {
+        files.push(file)
       }
     });
   }
@@ -8874,7 +8878,7 @@ var TemplateRenderer = function TemplateRenderer (options) {
   this.inject = options.inject !== false;
   // if no template option is provided, the renderer is created
   // as a utility object for rendering assets like preload links and scripts.
-    
+
   var template = options.template;
   this.parsedTemplate = template
     ? typeof template === 'string'
diff --git a/src/server/template-renderer/create-async-file-mapper.js b/src/server/template-renderer/create-async-file-mapper.js
index c989e33b9a4..057fa9083ee 100644
--- a/src/server/template-renderer/create-async-file-mapper.js
+++ b/src/server/template-renderer/create-async-file-mapper.js
@@ -44,7 +44,11 @@ function mapIdToFile (id, clientManifest) {
     fileIndices.forEach(index => {
       const file = clientManifest.all[index]
       // only include async files or non-js, non-css assets
-      if (clientManifest.async.indexOf(file) > -1 || !(/\.(js|css)($|\?)/.test(file))) {
+      if (
+        file &&
+        (clientManifest.async.indexOf(file) > -1 ||
+          !/\.(js|css)($|\?)/.test(file))
+      ) {
         files.push(file)
       }
     })