[onet.pl] libsyn podcast downloading

[selfisekai]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2020.07.28
• 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

 ✘ laura@iino  ~  youtube-dl -v https://wiadomosci.onet.pl/tylko-w-onecie/milosc-w-czasach-zarazy/nbqxxwm
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://wiadomosci.onet.pl/tylko-w-onecie/milosc-w-czasach-zarazy/nbqxxwm']
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] youtube-dl version 2020.07.28
[debug] Python version 3.8.4 (CPython) - Linux-5.7.13_1-x86_64-with-glibc2.2.5
[debug] exe versions: ffmpeg 4.3.1, ffprobe 4.3.1
[debug] Proxy map: {}
[onet.pl] nbqxxwm: Downloading webpage
[onet.pl] nbqxxwm: Downloading pulsembed webpage
ERROR: Unable to extract mvp 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/lib/python3.8/site-packages/youtube_dl/YoutubeDL.py", line 797, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.8/site-packages/youtube_dl/extractor/common.py", line 530, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib/python3.8/site-packages/youtube_dl/extractor/onet.py", line 265, in _real_extract
    mvp_id = self._search_mvp_id(webpage)
  File "/usr/lib/python3.8/site-packages/youtube_dl/extractor/onet.py", line 248, in _search_mvp_id
    return self._search_regex(
  File "/usr/lib/python3.8/site-packages/youtube_dl/extractor/common.py", line 1005, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract mvp 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.

Description

some onet.pl articles are available as podcasts. these should be downloadable with ytdl.