SSE support revisited

Hello the post from July 2024 titled " Does Render still not support SSE’s" states that SSE should work.

I included the response headers from the example. Streaming works well locally. However, once i deploy on to the render server it only displays text once the stream is complete. The http request never fully returns, it only hangs.

Is there a way to troubleshoot why SSE is not working in my app?