SSE Connection to Local starter-webmvc-server Fails with Cursor: Body Timeout Error

[wiesel07]

I'm building my MCP server using Spring AI WebMvc (starter-webmvc-server). When I run it locally and attempt to connect via SSE using Cursor, everything starts fine, but after a short while, the connection fails with the following error:
2025-06-25 11:07:35.726 [error] user-my-weather-server: Client error for command SSE error: TypeError: terminated: Body Timeout Error

https://github.com/spring-projects/spring-ai-examples/tree/main/model-context-protocol/weather/starter-webmvc-server