codesandbox / codesandbox/codesandbox-client

The React TypeScript template crashes when you attempt to compose CSS modules from different files

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JavaScript
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Description

🐛 bug report

Preflight Checklist

  • I have read the Contributing Guidelines for this project.
  • I agree to follow the Code of Conduct that this project
    adheres to.
  • I have searched the issue tracker for an issue that matches the one I want
    to file, without success.

Description of the problem

If you create a new react codesandbox by using the react ts template, it crashes if you try to compose css modules from different files

To Reproduce

Create a new React project and set up two CSS module files. In the second file, define a new class by composing one of the classes from the first file.

Next, attempt to utilize a class from the second file in any React component.

Link to sandbox: link (optional)
Your Environment
Software Name/Version
Сodesandbox dc96b837cf6bb4af9cd736aa3af08cf8279f7685
Browser Firefox 131.0b7
Operating System MacOS 14.6.1 (23G93)

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start with the linked CodeSandbox, using the React TypeScript template and the two CSS module files shown in App2.module.css. Reproduce the crash by composing a class across files and using the composed class in a React component; done means the template no longer crashes and the composed class works.

Written by the indexing model from the issue text.

Assessment

Tech stack
css, react, typescript
Domain
frontend
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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