javascript
WebSocket ping/pong timeout - connection stale
WebSocket.*ping.*timeout|pong.*not received|heartbeat.*failed
Fixes
- 1.Implement client-side ping: send periodic ping frames and expect pong within timeout
- 2.Server-side: use ws.isAlive flag with setInterval ping and terminate dead connections
- 3.Reduce ping interval if on unreliable networks — 30s ping with 10s pong timeout is typical
websocketpingheartbeat
Related Errors
javascript3 fixes
Cannot read property of undefined
Cannot read propert(y|ies) of undefined
- •Add optional chaining (?.)
- •Check if object exists before accessing
javascript3 fixes
Cannot read property of null
Cannot read propert(y|ies) of null
- •Add null check before access
- •Use optional chaining (?.)
javascript3 fixes
TypeError: X is not a function
is not a function
- •Check spelling of method name
- •Verify import is correct