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How to Fix Nginx Upstream Connection Refused Error - Clear Chrome Certificate Cache to Fix NET::ERR_CERT_AUTHORITY_INVALID-How to Refresh VSCode Source Control Detection

2026-07-28 06:31:20developer-tools
How to Fix Nginx Upstream Connection Refused Error - Clear Chrome Certificate Cache to Fix NET::ERR_CERT_AUTHORITY_INVALID-How to Refresh VSCode Source Control Detection

Final checklist

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