Update app.py

app.py

@@ -34,6 +34,7 @@ def download_subtitle(url: str, lang: Optional[str] = None) -> Optional[str]:
     }
     with yt_dlp.YoutubeDL(ydl_opts) as ydl:
         info_dict = ydl.extract_info(url, download=False)
+        print(info_dict)
         if info_dict.get("subtitles"):
             # get first available subtitle
             subtitle_url = info_dict["subtitles"][0]["url"]