Update app.py

app.py

@@ -251,8 +251,8 @@ with gr.Blocks(css=css,head=js,fill_height=True) as demo:
         if params.get("e", "0") == "1":
             #update the image
             #bind events
-            return Image.open(default_image)
-        return None
+            return [Image.open(default_image)]
+        return []
             
 
     result.change(fn=lambda x:x, inputs=[prompt,result], outputs=[], js=f'''(p,img)=>window.uploadImage(p, img,"process_finished","demo_hf_{cfg.get("name")}_card", "finish")''')