PostCSS and CSS Modules not working (again)

[chapati23]

Description

Sorry, to open this again. I'm aware there were several issue before e.g. #48 and #755

But unfortunately none of these solutions seem to work in the latest version (3.2.8). The storybook webpack doesn't complain but I don't get any of my styles because the class names that CSS Modules usually generates are now all undefined.

Very happy about any ideas.

.storybook/webpack.config.js

copy-pasted from my normal webpack.config where it works

const path = require('path')

module.exports = {
  plugins: [
    // your custom plugins
  ],
  module: {
    rules: [
      {
        test: /\.css$/,
        use: [
          {
            loader: 'css-loader',
            options: {
              camelCase: true,
              importLoaders: 1,
              modules: true,
              localIdentName: '[name]__[local]--[hash:base64:5]'
            }
          },
          'resolve-url-loader',
          'postcss-loader?sourceMap'
        ],
        include: path.resolve(__dirname, '../')
      }
    ]
  }
}

button.component.js

import React from 'react'
import styles from './button.styles.css'

export const Button = (props) => {
  return (
    <button className={`${styles.button} ${styles.big}`}
    >{props.children}</button>
  )
}
export default Button

button.styles.css

.normal {
  padding: 5px 15px;
}

.big {
  padding: 10px 50px;
}

.button {
  background-color: var(--cta);
  border: none;
  border-radius: 8px;
  color: var(--black);
  cursor: pointer;
  display: inline-block;
  font-family: 'cinetype', sans-serif;
  font-size: 18px;
  line-height: 30px;
  min-height: 40px;
  min-width: 90px;
  position: relative;
  text-transform: uppercase;
}

postcss.config.js

const colors = {
  black: '#141a2f',
  cta: '#e3d841',
  'dark-blue': '#172c81',
  'light-blue': '#4884c2',
  highlight: '#6bc3ff',
  light: '#e8ecff',
  'text-inactive': 'rgba(255, 255, 255, 0.4)',
  white: '#fff'
}

// Why em instead of px? Glad you asked: https://cloudfour.com/thinks/the-ems-have-it-proportional-media-queries-ftw/
const mediaQueries = {
  '--phone': '(min-width: 20em)', // 320px
  '--tablet': '(min-width: 48em)', // 768px
  '--desktop': '(min-width: 62em)', // 992px
  '--large-desktop': '(min-width: 75em)' // 1200px
}

module.exports = {
  plugins: {
    'postcss-import': {},
    'postcss-custom-properties': { variables: colors },
    'postcss-custom-media': { extensions: mediaQueries },
    'postcss-calc': {},
    'postcss-color-function': {},
    'postcss-cssnext': {
      browsers: ['last 2 versions', '> 5%'],
      warnForDuplicates: false
    },
    cssnano: {}
  }
}

[chapati23]

god i hate webpack. my bad, forgot style-loader of course…