How is it possible to avoid the "Endpoint origin does not match" exception?

[palandlom]

Question

On kuber-cluster we have MCP server and pydanticAI agent app

MCP server is running on 0.0.0.0:3001 with CORS restrictions disabled.
Agent tries to connect with it by URL http://mcp-server:3001 and fails by Exception from sse-client

17:24:28.317 process message 2025-06-12 17:24:28,406 - httpx - INFO - HTTP Request: GET http://mcp-server:3001/sse .HTTP/1.1 24545 OK. 
2025-06-12 17:24:28,407 - mcp.client.sse - ERROR - Endpoint origin does not match connection origin: http://0.0.0.0:3001/messag e?sessionId6.58h7del6-6480-4052-aBh-40c1h4d34d90 
2025-06-12 17:24:28,467 - mcp.client.sse - ERROR - Error in sse_reader: Endpoint origin does not match connection origin: http: //0.0.0.0:3001/messageIsessionId6.58h7del6-6480-4052-aBh-40c1b4d34d90 

Is there any way to influence this and avoid exception?
Is this exception really necessary? (i.e., maybe an warning would be enough.)

Additional Context

No response