3sat became unsupported

[avagraha]

Checklist

• [ x] I'm reporting a broken site support
• [ x] I've verified that I'm running youtube-dl version 2019.06.08
• [ 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

PASTE VERBOSE LOG HERE

C:\Users>y -v https://www.3sat.de/dokumentation/natur/wanderlust-108.
html
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['-v', 'https://www.3sat.de/dokumentation/natur/
wanderlust-108.html']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2019.06.08
[debug] Python version 3.4.4 (CPython) - Windows-Vista-6.0.6002-SP2
[debug] exe versions: ffmpeg N-93674-g1e01f66-Reino, ffprobe N-93674-g1e01f
66-Reino, rtmpdump 2.4
[debug] Proxy map: {}
[generic] wanderlust-108: Requesting header
WARNING: Falling back on generic information extractor.
[generic] wanderlust-108: Downloading webpage
[generic] wanderlust-108: Extracting information
ERROR: Unsupported URL: https://www.3sat.de/dokumentation/natur/wanderlust-
108.html
Traceback (most recent call last):
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmp3
esl0iyj\build\youtube_dl\YoutubeDL.py", line 796, in extract_info
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmp3
esl0iyj\build\youtube_dl\extractor\common.py", line 530, in extract
File "C:\Users\dst\AppData\Roaming\Build archive\youtube-dl\ytdl-org\tmp3
esl0iyj\build\youtube_dl\extractor\generic.py", line 3316, in _real_extract

youtube_dl.utils.UnsupportedError: Unsupported URL: https://www.3sat.de/dok
umentation/natur/wanderlust-108.html

Description

WRITE DESCRIPTION HERE
3sat was fully supported in the past.