Update app.py

app.py

@@ -136,7 +136,8 @@ def _purge_idle():
     
     for session_id in expired_sessions:
         asyncio.create_task(_close_session(session_id))
-
+        
+@app.post("/api/browser/close")
 async def _close_session(session_id: str):
     if session_id not in browser_instances:
         return