[tvigle] Unable to extract video id

[ghost]

• I've verified and I assure that I'm running youtube-dl 2016.04.19
• At least skimmed through README and most notably FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

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• Bug report (encountered problems with youtube-dl)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
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$ youtube-dl -v  http://www.tvigle.ru/video/sokrat/
[debug] System config: []
[debug] User config: ['-4', '--prefer-free-formats', '--no-cache-dir', '--no-mtime', '--youtube-skip-dash-manifest']
[debug] Command-line args: ['-v', 'http://www.tvigle.ru/video/sokrat/']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.04.19
[debug] Python version 3.5.1+ - Linux-4.5.1-gnu.nonpae-i686-with-debian-stretch-sid
[debug] exe versions: ffmpeg 3.0.1, ffprobe 3.0.1, rtmpdump 2.4
[debug] Proxy map: {}
[tvigle] sokrat: Downloading webpage
ERROR: Unable to extract video id; 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 671, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/common.py", line 341, in extract
    return self._real_extract(url)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/tvigle.py", line 62, in _real_extract
    webpage, 'video id')
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/common.py", line 653, in _html_search_regex
    res = self._search_regex(pattern, string, name, default, fatal, flags, group)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/common.py", line 644, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract video id; 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.

[ghost]

Again issue with this url, it show 403, others work fine.

$ youtube-dl --verbose  http://www.tvigle.ru/video/sokrat/
[debug] System config: []
[debug] User config: ['-4', '--prefer-free-formats', '--no-cache-dir', '--no-mtime', '--youtube-skip-dash-manifest']
[debug] Command-line args: ['--verbose', 'http://www.tvigle.ru/video/sokrat/']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.04.19
[debug] Python version 3.5.1+ - Linux-4.5.1-gnu.nonpae-i686-with-debian-stretch-sid
[debug] exe versions: ffmpeg 3.0.1, ffprobe 3.0.1, rtmpdump 2.4
[debug] Proxy map: {}
[tvigle] sokrat: Downloading webpage
[tvigle] sokrat: Downloading JSON metadata
[tvigle] 1848932: Downloading m3u8 information
[debug] Invoking downloader on 'http://cache5.tvigle.ru/28/2015/05/06/4eecd7f6-f744-4ae2-9baf-278d11b5b6d9.m3u8'
[download] Destination: Сократ-1848932.mp4
[debug] ffmpeg command line: ffmpeg -y -headers 'Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0) Gecko/20150101 Firefox/44.0 (Chrome)
Accept-Language: en-us,en;q=0.5
' -i http://cache5.tvigle.ru/28/2015/05/06/4eecd7f6-f744-4ae2-9baf-278d11b5b6d9.m3u8 -c copy -f mp4 -bsf:a aac_adtstoasc 'file:Сократ-1848932.mp4.part'
ffmpeg version 3.0.1 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.3.1 (Debian 5.3.1-14) 20160409
  configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector-strong -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --disable-decoder=amrnb --enable-libvo-amrwbenc --libdir=/usr/lib/i386-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libpulse --disable-mipsdsp --disable-mips32r2 --disable-mipsfpu --disable-mipsdspr2 --enable-libvidstab --enable-libzvbi --enable-avresample --disable-htmlpages --disable-podpages --enable-libutvideo --enable-libfdk-aac --enable-libx265 --enable-libbs2b --enable-libilbc --enable-libopenh264 --enable-libkvazaar --enable-libsnappy --enable-libsoxr --enable-libiec61883 --enable-vaapi --enable-opencl --enable-libdc1394 --disable-altivec --shlibdir=/usr/lib/i386-linux-gnu
  libavutil      55. 17.103 / 55. 17.103
  libavcodec     57. 24.102 / 57. 24.102
  libavformat    57. 25.100 / 57. 25.100
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 31.100 /  6. 31.100
  libavresample   3.  0.  0 /  3.  0.  0
  libswscale      4.  0.100 /  4.  0.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
[http @ 0x97a91c0] HTTP error 403 Forbidden
http://cache5.tvigle.ru/28/2015/05/06/4eecd7f6-f744-4ae2-9baf-278d11b5b6d9.m3u8: Server returned 403 Forbidden (access denied)


ERROR: ffmpeg exited with code 1
  File "/usr/local/bin/youtube-dl", line 9, in <module>
    load_entry_point('youtube-dl==2016.4.19', 'console_scripts', 'youtube-dl')()
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/__init__.py", line 419, in main
    _real_main(argv)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/__init__.py", line 409, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 1730, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 682, in extract_info
    return self.process_ie_result(ie_result, download, extra_info)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 727, in process_ie_result
    return self.process_video_result(ie_result, download=download)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 1376, in process_video_result
    self.process_info(new_info)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 1638, in process_info
    success = dl(filename, info_dict)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 1580, in dl
    return fd.download(name, info)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/downloader/common.py", line 350, in download
    return self.real_download(filename, info_dict)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/downloader/external.py", line 42, in real_download
    self.get_basename(), retval))
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/downloader/common.py", line 161, in report_error
    self.ydl.report_error(*args, **kargs)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 545, in report_error
    self.trouble(error_message, tb)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 507, in trouble
    tb_data = traceback.format_list(traceback.extract_stack())