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Fixing Cloudflare 521 Error: Enable Origin Pull Setup - Fix NET::ERR_CERT_AUTHORITY_INVALID by Clearing Chrome Certificate Cache-Resolve 'Permission Denied' in Visual Studio Code

Updated 2026-07-28 19:17:50cloud-software
Fixing Cloudflare 521 Error: Enable Origin Pull Setup - Fix NET::ERR_CERT_AUTHORITY_INVALID by Clearing Chrome Certificate Cache-Resolve 'Permission Denied' in Visual Studio Code
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.