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Docker Container Exits Immediately: How to Find Logs and Fix It - Cloudflare 521 Error Due to Server Overload Fix-Resolving npm Build Errors from Missing Environment Variables

Updated 2026-07-28 10:51:23browser-issues
Docker Container Exits Immediately: How to Find Logs and Fix It - Cloudflare 521 Error Due to Server Overload Fix-Resolving npm Build Errors from Missing Environment Variables
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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