class YoutubeIE(YoutubeBaseInfoExtractor, SubtitlesInfoExtractor):
IE_DESC = u'YouTube.com'
- _VALID_URL = r"""(?xi)^
+ _VALID_URL = r"""(?x)^
(
(?:https?://|//)? # http(s):// or protocol-independent URL (optional)
- (?:(?:(?:(?:\w+\.)?youtube(?:-nocookie)?\.com/|
+ (?:(?:(?:(?:\w+\.)?[yY][oO][uU][tT][uU][bB][eE](?:-nocookie)?\.com/|
tube\.majestyc\.net/|
youtube\.googleapis\.com/) # the various hostnames, with wildcard subdomains
(?:.*?\#/)? # handle anchor (#/) redirect urls