[Pornotube] Unable to extract originAuthenticationSpaceKey.

[ghost]

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$ y -v 'http://www.pornotube.com/orientation/straight/video/4964/title/weird-hot-and-wet-science'
[debug] System config: []
[debug] User config: ['-4', '-f', 'best', '--prefer-free-formats', '--no-cache-dir', '--no-mtime', '--youtube-skip-dash-manifest']
[debug] Command-line args: ['-v', 'http://www.pornotube.com/orientation/straight/video/4964/title/weird-hot-and-wet-science']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.08.12
[debug] Python version 3.5.2+ - Linux-4.7.0-rc7-686-i686-with-debian-stretch-sid
[debug] exe versions: ffmpeg 3.1.2, ffprobe 3.1.2, rtmpdump 2.4
[debug] Proxy map: {}
[Pornotube] 4964: Download JS config
ERROR: Unable to extract originAuthenticationSpaceKey; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 691, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/common.py", line 347, in extract
    return self._real_extract(url)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/pornotube.py", line 40, in _real_extract
    js_config, 'originAuthenticationSpaceKey')
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/common.py", line 650, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract originAuthenticationSpaceKey; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

http://www.pornotube.com/orientation/straight/video/4964/title/weird-hot-and-wet-science