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Fixing Nginx Upstream Connection Refused on Port 443 - Wildcard Subdomain CNAME Configuration on Cloudflare-Fix npm install Permission Denied in CI/CD Pipelines

2026-07-28 02:37:05
Fixing Nginx Upstream Connection Refused on Port 443 - Wildcard Subdomain CNAME Configuration on Cloudflare-Fix npm install Permission Denied in CI/CD Pipelines

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

Next references

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