Version 3.1.0+ breaks SASS modules composition

Describe the bug

In 3.1.0 the resolve-url-loader lib was added that breaks SASS modules composition. Either removing the lib from the webpack config or downgrading to 3.0.1 fixes the issue.

Did you try recovering your dependencies?

Yes. Deleted node-modules and removed the package-lock.json.

Environment

Environment Info:

  System:
    OS: macOS 10.14.6
    CPU: (8) x64 Intel(R) Core(TM) i7-6820HQ CPU @ 2.70GHz
  Binaries:
    Node: 12.6.0 - /usr/local/bin/node
    Yarn: 1.17.3 - /usr/local/bin/yarn
    npm: 6.10.1 - /usr/local/bin/npm
  Browsers:
    Chrome: 77.0.3865.75
    Firefox: 66.0.3
    Safari: 12.1.2
  npmPackages:
    react: ^16.9.0 => 16.9.0 
    react-dom: ^16.9.0 => 16.9.0 
    react-scripts: 3.1.1 => 3.1.1 
  npmGlobalPackages:
    create-react-app: Not Found

Steps to reproduce

1. npx create-react-app test_app && cd test_app
2. yarn add node-sass
3. Create b.module.sass with

.test
  background: #FFF

1. Create a.module.sass with

.test
  composes: test from './b.module.sass`

1. In App.js add as the first line import './a.module.sass'
2. yarn start and observe the error

---

1. Rename b.module.sass to b.module.css and replace the contents with

.test {
  background: #FFF;
}

1. In a.module.sass change b.module.sass to b.module.css
2. Observe that the error is gone

Expected behavior

Build succeeds.

Actual behavior

Build fails.

./src/b.module.sass (./node_modules/css-loader/dist/cjs.js??ref--6-oneOf-6-1!./node_modules/postcss-loader/src??postcss!./node_modules/resolve-url-loader??ref--6-oneOf-6-3!./src/b.module.sass)
Error: resolve-url-loader: CSS error
  ./src/b.module.sass:2:3: Unknown word
You tried to parse Sass with the standard CSS parser; try again with the postcss-sass parser
  You tried to parse Sass with the standard CSS parser; try again with the postcss-sass parser

Reproducible demo

https://github.com/Igor10k/rca_sass_modules_bug

[igor10k]

I miss the times when the CRA team cared more about the stability of the package. Now they’ve added resolve-url-loader to cover some specific use-cases of the app building but broke the old ways. And the issue is here for 4 months already and nobody gives a damn. According to the author of resolve-url-loader the bug is in fact in css-loader. But the corresponding github issue in css-loader was closed so I guess it won’t be fixed. The obvious fix for CRA should’ve been to just drop resolve-url-loader until it’s fixed. Or at least make it optional and disabled by default.

[heladiofog]

Does somebody have had the same issue with url images. I have. a message like ’ Module not found: Can’t resolve <wrong image path> in <react src>'.