7 articles
RSSHow to fix Cloudflare Durable Objects errors — idFromName vs newUniqueId, Storage transactions, blockConcurrencyWhile, WebSocket Hibernation API, alarms, migrations, and class binding setup.
How to fix Supabase Realtime errors — postgres_changes subscription not firing, RLS blocking events, channel.subscribe callback timing, presence diff payloads, broadcast vs database events, auth refresh, and reconnection.
How to fix aiohttp errors — RuntimeError session is closed, ClientConnectorError connection refused, SSL verify failure, Unclosed client session warning, server websocket disconnect, and connector pool exhausted.
How to fix GraphQL subscriptions not receiving updates — WebSocket setup, subscription protocol, Apollo Client config, server-side pub/sub, authentication over WebSocket, and reconnection.
How to fix Socket.IO CORS errors — server-side CORS configuration, credential handling, polling vs WebSocket transport, proxy setup, and common connection failures.
How to fix Socket.IO connection failures — CORS errors, transport fallback issues, wrong namespace, server not emitting to the right room, and how to debug Socket.IO connections in production.
How to fix Nginx WebSocket proxying not working — 101 Switching Protocols fails, connections drop after 60 seconds, missing Upgrade headers, and SSL WebSocket configuration.