issue

Step

npm install

npm run build

check

see dist/index.html

  <link href=/css/app.eca329cd.css rel=stylesheet>
  <link href=/css/chunk-elementUI.aed9c24b.css rel=stylesheet>

  //vue.config.js
  configureWebpack: {
    optimization: {
+     runtimeChunk: 'single'
    }
  }

When I add runtimeChunk, the order is wrong.