2025-09-19T17:13:52 [RELAY] [2025-09-19T15:11:12Z ERROR sdk_relay] WebSocket handshake failed for 172.20.0.1:38612: WebSocket protocol error: Handshake not finished
2025-09-19T17:13:52 [RELAY] [2025-09-19T15:24:36Z ERROR sdk_relay] WebSocket handshake failed for 172.20.0.1:44116: WebSocket protocol error: No "Connection: upgrade" header
2025-09-19T17:13:52 [RELAY] [2025-09-19T16:41:55Z ERROR sdk_relay] WebSocket handshake failed for 172.20.0.1:57946: WebSocket protocol error: Unsupported HTTP method used - only GET is allowed