Update app.py

app.py

@@ -294,7 +294,7 @@ with gr.Blocks(title="Solar CME Detection") as demo:
         fn=handle_fetch,
         inputs=[start_date, end_date, ident, size, tool],
         outputs=[report, preview],
-        _js="() => {return {fetched_frames_state: []}}"
+        js="() => {return {fetched_frames_state: []}}"
     ).then(
         fn=lambda report, preview_frames: (preview_frames, report),
         inputs=[report, preview],