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Fix Cloudflare Wildcard Subdomain Page Rule Not Working - Nginx Upstream Connection Refused in Docker: How to Fix-Troubleshoot Edge Sync Failure After Update

2026-07-28 15:38:54developer-tools
Fix Cloudflare Wildcard Subdomain Page Rule Not Working - Nginx Upstream Connection Refused in Docker: How to Fix-Troubleshoot Edge Sync Failure After Update

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.