Update chat.py

chat.py

@@ -445,5 +445,9 @@ async def chat(request: Request):
     # Retourner une réponse en streaming
     return StreamingResponse(
         generate_stream(),
-        media_type="text/event-stream"
+        media_type="text/event-stream",
+        headers={
+            "Cache-Control": "no-cache, no-transform",       
+            "X-Accel-Buffering": "no",                        
+        }
     )