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Fix Nginx Upstream Connection Refused Behind Cloudflare - Fix Chrome Certificate Error Due to Antivirus Interference-Java Code Completion Not Working in VS Code

Updated 2026-07-28 12:31:23developer-tools
Fix Nginx Upstream Connection Refused Behind Cloudflare - Fix Chrome Certificate Error Due to Antivirus Interference-Java Code Completion Not Working in VS Code
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.

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