svt_id = self._search_regex(
(r'<video[^>]+data-video-id=["\']([\da-zA-Z-]+)',
r'["\']videoSvtId["\']\s*:\s*["\']([\da-zA-Z-]+)',
+ r'["\']videoSvtId\\?["\']\s*:\s*\\?["\']([\da-zA-Z-]+)',
r'"content"\s*:\s*{.*?"id"\s*:\s*"([\da-zA-Z-]+)"',
- r'["\']svtId["\']\s*:\s*["\']([\da-zA-Z-]+)'),
+ r'["\']svtId["\']\s*:\s*["\']([\da-zA-Z-]+)',
+ r'["\']svtId\\?["\']\s*:\s*\\?["\']([\da-zA-Z-]+)'),
webpage, 'video id')
info_dict = self._extract_by_video_id(svt_id, webpage)