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How to Fix Nginx 'Upstream Connection Refused' Error - Debugging Jest Tests in VS Code: Breakpoints Not Hit-Resolve Chrome Access Violation After Update

2026-07-28 13:09:00developer-tools
How to Fix Nginx 'Upstream Connection Refused' Error - Debugging Jest Tests in VS Code: Breakpoints Not Hit-Resolve Chrome Access Violation After Update

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.