config = self._download_json(
config_url, display_id,
'Downloading config JSON',
- transform_source=lambda s: re.sub(r'var\s+[\da-zA-Z_]+\s*=\s*({.+?});', r'\1', s))
+ transform_source=lambda s: s[s.index('{'):s.rindex('}') + 1])
mediafile = config['mediafile']
video_url = mediafile['src']