- if track.get('file') and track.get('kind') == 'captions':
- subtitles.setdefault(track.get('label') or 'en', []).append({
- 'url': self._proto_relative_url(track['file'])
- })
+ if track.get('kind') != 'captions':
+ continue
+ track_url = urljoin(base_url, track.get('file'))
+ if not track_url:
+ continue
+ subtitles.setdefault(track.get('label') or 'en', []).append({
+ 'url': self._proto_relative_url(track_url)
+ })