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Fixing Cloudflare Wildcard Subdomain Proxy Errors - Resolve Nginx 502 Bad Gateway in Docker via Environment Variables-Enable Windows Defender Real-Time Protection: Step-by-Step

Updated 2026-07-28 06:54:10
Fixing Cloudflare Wildcard Subdomain Proxy Errors - Resolve Nginx 502 Bad Gateway in Docker via Environment Variables-Enable Windows Defender Real-Time Protection: Step-by-Step
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.