webpack html-loader and MiniCssExtractPlugin

[bojanv55]

I'm using setup from getting-started webpack page:

const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require("mini-css-extract-plugin");

module.exports = {
  mode: 'development',
  entry: './src/index.js',
  devtool: 'inline-source-map',
  devServer: {
    contentBase: './dist',
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: 'Development',
      template: 'src/index.html'
    }),
    new MiniCssExtractPlugin(),
  ],
  output: {
    filename: '[name].bundle.js',
    path: path.resolve(__dirname, 'dist'),
    clean: true //clean dist folder before each build
  },
  module: {
    rules: [
      {
        test: /\.html$/i,
        loader: 'html-loader',
      },
      {
        test: /\.css$/i,
        use: [MiniCssExtractPlugin.loader, 'css-loader'],
      },
      {
        test: /\.(png|svg|jpg|jpeg|gif|ico)$/i,
        type: 'asset/resource',
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/i,
        type: 'asset/resource',
      },
    ],
  },
};

And this one works OK if I include import './style.css'; at the top of src/index.js. Inside of the produced dest/index.html I get the line where the extracted CSS style is generated as <link href="main.css" rel="stylesheet">.

Now what I want is to remove that line import './style.css'; at the top of src/index.js and use instead of that one <link rel="stylesheet" type="text/css" href="style.css"> that I will place inside the template src/index.html.

When doing this, generated dest/index.html gets correctly the line <link rel="stylesheet" type="text/css" href="b88d04fba731603756b1.css"> and the file dest/b88d04fba731603756b1.css is generated, but it's content is wrong as I get this instead of real css styles:

// extracted by mini-css-extract-plugin
export {};

Is there a way to use html-loader plugin together with MiniCssExtractPlugin, so that I do not need to import css inside js files but instead import it inside html template?

[alexander-akait]

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[bojanv55]

• Operating System: Windows 10
• Node Version: v14.15.0
• NPM Version:6.14.8
• webpack Version:^5.44.0
• mini-css-extract-plugin Version:^2.1.0
• html-loader Version:^2.1.2

Expected Behavior

file dest/index.html is generated and links to <link rel="stylesheet" type="text/css" href="b88d04fba731603756b1.css"> and inside that css file there is following content

.loader{
 background-color: red;
}

Actual Behavior

file dest/index.html is generated and links to <link rel="stylesheet" type="text/css" href="b88d04fba731603756b1.css"> and inside that css file there is following content

// extracted by mini-css-extract-plugin
export {};

Code

Gist

[day-xue]

I have the same problem. Have you solved it now
我有同样的问题，现在解决了吗？
But I just generated a more referable translation of a css file style similar to the main one
但是我只是多生成了一个类似楼主的.css文件 样式还是能引用的

[namighajiyev]

I have the same problem too. If I remove MiniCssExtractPlugin from plugins list HtmlWebpackPlugin outputs all css files normally. But with MiniCssExtractPlugin css files became empty just containing only these two lines :

// extracted by mini-css-extract-plugin
export {};

[day-xue]

I have the same problem too. If I remove MiniCssExtractPlugin from plugins list HtmlWebpackPlugin outputs all css files normally. But with MiniCssExtractPlugin css files became empty just containing only these two lines :

// extracted by mini-css-extract-plugin
export {};

并且如果你使用css-loader 打包 会提示 css文件有非法的注释的翻译结果
And if you use CSS-loader to package the CSS file, it will prompt you that the CSS file has an illegal annotation translation result

[maximeRoudier]

I have the same problem, did you find the solution to avoid "// extracted by mini-css-extract-plugin export {};" ?

[F21]

Seeing this issue as well. Are there any work-arounds?

[vankop]

you probably need to add css import in application ( in src/index.js )

[F21]

Ah right. In my case, I don't have a javascript app, I am just using Webpack to process some templates / assets and rewrite the URLs.

[Blackclaws]

Same issue here, this is really weird.

[CornerSyrup]

Looking for solution too, but it seem to be the expected behaviour,
including the promotional comment of // extracted by mini-css-extract-plugin

mini-css-extract-plugin/test/enforce-esm.test.js

Lines 20 to 23 in 1ffad9b

	expect(source("./simple.css", stats)).toMatchInlineSnapshot(`
	"// extracted by mini-css-extract-plugin
	export {};"
	`);

related issue found

[CornerSyrup]

my solution, partial of my webpack.config.js
to exclude prime vue from my project

      {
        test: /\.css$/,
        exclude: /prime(vue|icons).+\.css$/,
        use: [MiniCssExtractPlugin.loader, "css-loader"],
      },
      {
        test: /prime(vue|icons).+\.css$/,
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: { emit: false, esModule: false },
          },
          "css-loader",
        ],
      },