Issue with Patreon extraction KeyError('embed',)

[m238]

Checklist

• I'm reporting a broken site support issue
• I've verified that I'm running youtube-dl version 2019.09.12.1
• I've checked that all provided URLs are alive and playable in a browser
• I've searched the bugtracker for similar bug reports
• I've read bugs section in FAQ

Verbose Log

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['https://www.patreon.com/posts/maya-retiming-2199632
6', '--username', 'PRIVATE', '--password', 'PRIVATE', '--verbose']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2019.09.12.1
[debug] Python version 3.4.4 (CPython) - Windows-7-6.1.7601-SP1
[debug] exe versions: ffmpeg 4.2.1, ffprobe 4.2.1
[debug] Proxy map: {}
[Patreon] 21996326: Downloading JSON metadata
ERROR: An extractor error has occurred. (caused by KeyError('embed',)); please r
eport this issue on https://yt-dl.org/bug . Make sure you are using the latest v
ersion; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --ve
rbose flag and include its complete output.
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs
4t\build\youtube_dl\extractor\common.py", line 530, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs
4t\build\youtube_dl\extractor\patreon.py", line 133, in _real_extract
KeyError: 'embed'
Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs
4t\build\youtube_dl\extractor\common.py", line 530, in extract
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs
4t\build\youtube_dl\extractor\patreon.py", line 133, in _real_extract
KeyError: 'embed'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs
4t\build\youtube_dl\YoutubeDL.py", line 796, in extract_info
  File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmphopugs
4t\build\youtube_dl\extractor\common.py", line 543, in extract
youtube_dl.utils.ExtractorError: An extractor error has occurred. (caused by Key
Error('embed',)); please
...
<end of log>

Description

I'm attempting to extract a Vimeo embed from a user restricted Patreon page but it's returning an extractor error caused by KeyError('embed',). I've ommited the initial command as it contained usernames and passwords.

[remitamine]

try to use cookies.

[dezza]

I think the issue is that post_file is no longer valid, it seems that some javascript changes a video playback button into a embedded video.

Whether youtube-dl can activate a click event like that I don't suppose, but I might be surprised?