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Fixing Nginx Upstream Connection Refused on Port 443 - Fix Python UnicodeDecodeError in Socket Data-VSCode Dart IntelliSense Not Working: Step-by-Step Fix

2026-07-28 07:16:51
Fixing Nginx Upstream Connection Refused on Port 443 - Fix Python UnicodeDecodeError in Socket Data-VSCode Dart IntelliSense Not Working: Step-by-Step Fix

Result check

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

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