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How to Fix Cloudflare 521 Error with Firewall Settings - Cloudflare Full Strict Mixed Content Fix-Resolve Git Permission Denied After Adding Remote

Updated 2026-07-28 10:10:19developer-tools
How to Fix Cloudflare 521 Error with Firewall Settings - Cloudflare Full Strict Mixed Content Fix-Resolve Git Permission Denied After Adding Remote
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.