dont work for css-loader@^2

[VadimZvf]

classNames dont match with css-loader@2.0.0 or above
with css-loader@1.0.1 all fine

[felixcatto]

With css-loader@3.6.0 all works fine
I use generateScopedName: '[local]--[hash:base64:5]', in server babel config
and localIdentName: '[local]--[hash:base64:5]', in client (webpack) config

[felixcatto]

It turns out, in some cases classNames really don't match. But you can generate them by yourself.
someFIle.js

const crypto = require('crypto');

const generateScopedName = (localName, resourcePath) => {
  const getHash = value => crypto.createHash('sha256').update(value).digest('hex');
  const hash = getHash(`${resourcePath}${localName}`).slice(0, 5);
  return `${localName}__${hash}`;
};

server babel config

[
  'css-modules-transform',
  {
    generateScopedName,
    devMode: true,
  },
],

client webpack config

{
  loader: 'css-loader',
  options: {
    modules: {
      getLocalIdent: ({ resourcePath }, _, localName) => generateScopedName(localName, resourcePath),
    },
  },
},

[suhanw]

classNames don't match for me either, I'm using css-loader@5.0.1 and babel-plugin-css-modules-transform@1.6.2