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Fixing NGINX Upstream Connection Refused SSL Errors - Fix Missing Extensions in Chrome Due to Sync Problems-DNS Propagation Troubleshooting for Cloudflare Users

Updated 2026-07-28 12:27:25office-tools
Fixing NGINX Upstream Connection Refused SSL Errors - Fix Missing Extensions in Chrome Due to Sync Problems-DNS Propagation Troubleshooting for Cloudflare Users
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.