Files
docker-swarm-termina/test_socketio_connection.py
Claude 9fe942a510 Fix WebSocket connection blocked by Cloudflare by prioritizing polling transport
Changed Socket.IO transport order from ['websocket', 'polling'] to
['polling', 'websocket'] in the frontend terminal hook.

Why this fixes the issue:
- Cloudflare blocks direct WebSocket connections with 400 Bad Request
- HTTP polling works perfectly and bypasses Cloudflare's WebSocket protection
- Socket.IO now connects via polling first, then attempts upgrade to WebSocket
- If WebSocket upgrade fails (due to Cloudflare), connection stays on polling
- This ensures reliable connectivity without requiring Cloudflare config changes

Testing script included demonstrates:
✓ Polling transport: WORKS
✗ Direct WebSocket: BLOCKED by Cloudflare
✓ Auto-upgrade (polling→websocket): WORKS with graceful fallback

https://claude.ai/code/session_01SePwA78FSw4urCoyR2cqFh
2026-01-31 13:28:03 +00:00

4.5 KiB