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Cloudflare 521 Error: How to Check Server Logs - Fix VS Code Source Control Not Detecting Changes with Permission Denied-Resolving Nginx Connection Refused Error

Updated 2026-07-28 09:44:27macos-help
Cloudflare 521 Error: How to Check Server Logs - Fix VS Code Source Control Not Detecting Changes with Permission Denied-Resolving Nginx Connection Refused Error
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.