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Fix ERR_CONNECTION_RESET on Chrome for Android - Cloudflare 521 Error: Port 443 Blocked Fixes-Docker Compose ENV Not Passed to Entrypoint

2026-07-29 00:59:22
Fix ERR_CONNECTION_RESET on Chrome for Android - Cloudflare 521 Error: Port 443 Blocked Fixes-Docker Compose ENV Not Passed to Entrypoint

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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