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Cloudflare Error 521: Web Server Down Checklist - Fix Cloudflare Origin Certificate Permission Denied Error-VS Code Git PAT Authentication Error Fix

Updated 2026-07-28 12:13:00developer-tools
Cloudflare Error 521: Web Server Down Checklist - Fix Cloudflare Origin Certificate Permission Denied Error-VS Code Git PAT Authentication Error Fix
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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