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Cloudflare 521 Error: Fixing WordPress Connection Issues - Resolve 'Unable to Get Local Issuer' in Git on Ubuntu-Diagnosing Chrome Invalid Authority Certificate Errors

Updated 2026-07-28 06:05:00developer-tools
Cloudflare 521 Error: Fixing WordPress Connection Issues - Resolve 'Unable to Get Local Issuer' in Git on Ubuntu-Diagnosing Chrome Invalid Authority Certificate Errors
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.

More repair notes

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