From 73a9ab03797dcc6ad91e2150280401857957884f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8A=B1=E8=A3=A4=E8=A1=A9?= <panfree23@gmail.com>
Date: Tue, 23 Jun 2020 21:12:44 +0800
Subject: [PATCH] fix[chore]: do not preload runtime.js (#3279)

---
 vue.config.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/vue.config.js b/vue.config.js
index 6733dd50..68b3e99e 100644
--- a/vue.config.js
+++ b/vue.config.js
@@ -50,7 +50,16 @@ module.exports = {
   },
   chainWebpack(config) {
     // it can improve the speed of the first screen, it is recommended to turn on preload
-    // config.plugins.delete('preload')
+    // it can improve the speed of the first screen, it is recommended to turn on preload
+    config.plugin('preload').tap(() => [
+      {
+        rel: 'preload',
+        // to ignore runtime.js
+        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
+        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
+        include: 'initial'
+      }
+    ])
 
     // when there are many pages, it will cause too many meaningless requests
     config.plugins.delete('prefetch')
@@ -118,6 +127,7 @@ module.exports = {
                 }
               }
             })
+          // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
           config.optimization.runtimeChunk('single')
         }
       )