TypeError crash when parsing malformed JSON response

[stranske]

Bug Report

Describe the bug
Application crashes with TypeError when the external API returns malformed JSON.

To Reproduce

1. Make request to /api/data endpoint
2. Backend receives invalid JSON from upstream service
3. Application throws TypeError: Cannot read property 'data' of undefined

Expected behavior
Application should handle malformed responses gracefully and return an appropriate error message.

Stack trace

TypeError: Cannot read property 'data' of undefined
    at parseResponse (src/api/parser.js:45)
    at handleRequest (src/api/handler.js:123)

---

Test Case: Suite D Re-validation #1 - Clear BUG. Should get ONLY bug label.

[github-actions]

⚠️ Potential Duplicate Detected

This issue appears similar to existing open issues:

• TypeError crash when parsing malformed JSON response #260 - TypeError crash when parsing malformed JSON response (99% similarity)

What should I do?

1. Review the linked issues to see if they address the same problem
2. If duplicate: Close this issue and add your context to the existing one
3. If different: Add a comment explaining how this issue is distinct
4. If related: Link the issues and keep both open

---

Auto-generated by duplicate detection • False positive? Just ignore this comment.