Youtube age-gated video error

[someziggyman]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2020.09.20
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

youtube-dl -v -F https://www.youtube.com/watch?v=R89f5YMT-QA
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'-F', u'https://www.youtube.com/watch?v=R89f5YMT-QA']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.09.20
[debug] Python version 2.7.16 (CPython) - Darwin-18.7.0-x86_64-i386-64bit
[debug] exe versions: none
[debug] Proxy map: {}
[youtube] R89f5YMT-QA: Downloading webpage
[youtube] R89f5YMT-QA: Downloading embed webpage
[youtube] R89f5YMT-QA: Refetching age-gated info webpage
ERROR: Watch this video on YouTube. Playback on other websites has been disabled by the video owner.
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 797, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 532, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/youtube.py", line 2231, in _real_extract
    raise ExtractorError(error_message, expected=True)
ExtractorError: Watch this video on YouTube. Playback on other websites has been disabled by the video owner.

Description

Looks like Youtube has change behavior for age-gated video. Now, youtube-dl returns ERROR: Watch this video on YouTube. Playback on other websites has been disabled by the video owner. This did not happen before.

Passing cookies, login and user-agent did not help.

[someziggyman]

Seems like I've found a solution!

20 days ago, on Sep 6, 2020 youtube-dl main repo had a commit related to age-gated content.
16ee69c

So, in youtube_dl/extractor/youtube.py
I just removed the newly added 2 lines and returned the old one:
if re.search(r'player-age-gate-content">', video_webpage) is not None:

This way we can not by-pass geo restriction, but at least it works with --cookies parameter.
Worked for links like:
https://www.youtube.com/watch?v=MxCRYXg6hLs
https://www.youtube.com/watch?v=fh2cDKyFdyU

[pukkandan]

Also see #26652