Update app.py

app.py

@@ -18,10 +18,11 @@ def download_video(url, request):
         os.mkdir(output_path)
 
     # get cookies
-    export_cookies_path = "/cache/exported_cookies.txt"
+    export_cookies_path = "./cache/exported_cookies.txt"
+    os.makedirs(os.path.dirname(export_cookies_path), exist_ok=True)
     try:
         ydl_opts_export_cookies = {
-            'cookiesfrombrowser': 'firefox', # Try firefox, or 'chrome', 'edge', etc.
+            'cookiesfrombrowser': ('firefox',None,None,None), 
             'cookiefile': export_cookies_path,
             'quiet': True,
         }