Unable to extract post url

[sufr3ak]

Checklist

• [x] I'm reporting a broken site support
• [x] I've verified that I'm running youtube-dl version 2020.06.16.1
• [x] I've checked that all provided URLs are alive and playable in a browser
• [x] I've checked that all URLs and arguments with special characters are properly quoted or escaped
• [x] I've searched the bugtracker for similar issues including closed ones

Verbose log

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'--verbose', u'--ap-mso', u'Comcast_SSO', u'--ap-username', u'PRIVATE', u'--ap-password', u'PRIVATE', u'https://disneynow.com/shows/fancy-nancy/season-02/episode-10-nancy-rocks-the-boat-spring-dress-mess/vdka18980859']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2020.06.16.1
[debug] Python version 2.7.16 (CPython) - Linux-4.19.118+-armv6l-with-debian-10.4
[debug] exe versions: ffmpeg 4.3-static
[debug] Proxy map: {}
[Go] vdka18980859: Downloading JSON metadata
[Go] VDKA18980859: Downloading Provider Redirect Page
ERROR: Unable to extract post url; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  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/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 530, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/go.py", line 187, in _real_extract
    url, video_id, requestor_id, resource)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/adobepass.py", line 1453, in _extract_mvpd_auth
    self._DOWNLOADING_LOGIN_PAGE)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/adobepass.py", line 1365, in post_form
    post_url = self._html_search_regex(r'<form[^>]+action=(["\'])(?P<url>.+?)\1', form_page, 'post url', group='url')
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 1014, in _html_search_regex
    res = self._search_regex(pattern, string, name, default, fatal, flags, group)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 1005, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
RegexNotFoundError: Unable to extract post url; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

Description

Cannot download from Comcast/Xfinity. Would use cookies, but cookies says to use MSO

[dstftw]

You must provide TV account credentials for any work on this.

[sufr3ak]

I cant post creds in an open forum. How would they be supplied?