[reddit] Video on self post marked as unsupported

[megascrapper]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.08.02
• 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

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'--ignore-config', u'https://reddit.com/link/cjy6vb/video/yklvrsmxbid31/player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.08.02
[debug] Python version 2.7.16 (CPython) - Darwin-18.7.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.1.4, ffprobe 4.1.4, rtmpdump 2.4
[debug] Proxy map: {}
[generic] player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb: Requesting header
[redirect] Following redirect to https://www.reddit.com/link/cjy6vb/video/yklvrsmxbid31/player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb
[generic] player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb: Requesting header
WARNING: Falling back on generic information extractor.
[generic] player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb: Downloading webpage
[generic] player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb: Extracting information
ERROR: Unsupported URL: https://www.reddit.com/link/cjy6vb/video/yklvrsmxbid31/player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/generic.py", line 2357, in _real_extract
    doc = compat_etree_fromstring(webpage.encode('utf-8'))
  File "/usr/local/bin/youtube-dl/youtube_dl/compat.py", line 2551, in compat_etree_fromstring
    doc = _XML(text, parser=etree.XMLParser(target=_TreeBuilder(element_factory=_element_factory)))
  File "/usr/local/bin/youtube-dl/youtube_dl/compat.py", line 2540, in _XML
    parser.feed(text)
  File "/usr/local/Cellar/python@2/2.7.16/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py", line 1659, in feed
    self._raiseerror(v)
  File "/usr/local/Cellar/python@2/2.7.16/Frameworks/Python.framework/Versions/2.7/lib/python2.7/xml/etree/ElementTree.py", line 1523, in _raiseerror
    raise err
ParseError: syntax error: line 1, column 0
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 796, 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/generic.py", line 3333, in _real_extract
    raise UnsupportedError(url)
UnsupportedError: Unsupported URL: https://www.reddit.com/link/cjy6vb/video/yklvrsmxbid31/player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb

Note: the video is part of a self post. Putting the post URL onto youtube-dl yields the following log:

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-v', u'--ignore-config', u'https://reddit.com/r/iOSBeta/comments/cjy6vb/feature_you_can_now_set_content_aware_wallpapers/']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.08.02
[debug] Python version 2.7.16 (CPython) - Darwin-18.7.0-x86_64-i386-64bit
[debug] exe versions: ffmpeg 4.1.4, ffprobe 4.1.4, rtmpdump 2.4
[debug] Proxy map: {}
[RedditR] cjy6vb: Downloading JSON metadata
ERROR: No media found
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 796, 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/reddit.py", line 109, in _real_extract
    raise ExtractorError('No media found', expected=True)
ExtractorError: No media found

Description

I was trying to download a reddit video posted on a self post. However it seems that youtube-dl was unable to detect the video file.

The post in question: https://reddit.com/r/iOSBeta/comments/cjy6vb/feature_you_can_now_set_content_aware_wallpapers/

Direct link to video: https://reddit.com/link/cjy6vb/video/yklvrsmxbid31/player?utm_source=reddit&utm_medium=usertext&utm_name=iOSBeta&utm_content=t3_cjy6vb