Update app.py

app.py

@@ -144,11 +144,13 @@ function Scrolldown() {
         const callback = (mutationList, observer) => {
             targetNode.scrollTop = targetNode.scrollHeight;
         };
+        console.log("begun to observe")
         const observer = new MutationObserver(callback);
         observer.observe(targetNode, config);
     }
 
     document.addEventListener("DOMContentLoaded", startObserver);
+    console.log("event found")
 }
 """
 with gr.Blocks(css=".chatbox {height: 400px; overflow-y: auto; border: 1px solid #262626; padding: 10px; background-color: #171717;}", js=js) as demo: