Home / office-tools / Fix Cloudflare 521 Error: DNS Configuration Problem - Docker Build Canceled: How to Handle Large Contexts-pnpm install Exit Code 1: How to Fix

Fix Cloudflare 521 Error: DNS Configuration Problem - Docker Build Canceled: How to Handle Large Contexts-pnpm install Exit Code 1: How to Fix

2026-07-28 07:07:58office-tools

Fix Cloudflare 521 Error: DNS Configuration Problem - Docker Build Canceled: How to Handle Large Contexts-pnpm install Exit Code 1: How to Fix

Final checklist

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