[Go90] resubmitting #15404, part 1

[2011]

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.06.25. If it's not, read this FAQ entry and update. Issues with outdated version will be rejected.

• I've verified and I assure that I'm running youtube-dl 2018.06.25

Before submitting an issue make sure you have:

• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones
• Checked that provided video/audio/playlist URLs (if any) are alive and playable in a browser

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)

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$ youtube-dl -v -f best 'https://www.go90.com/embed/261MflWkD3N'
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['--restrict-filenames', '-o', '%(title)s-%(id)s-%(uploader)s.%(ext)s', '-w', '-v', '-f', 'best', 'https://www.go90.com/embed/261MflWkD3N']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2018.06.25
[debug] Python version 3.6.5 (CPython) - Linux-4.4.39-gentoo-x86_64-Intel-R-_Core-TM-_i5_CPU_750_@_2.67GHz-with-gentoo-2.4.1
[debug] exe versions: ffmpeg 3.3.6, ffprobe 3.3.6, rtmpdump 2.4
[debug] Proxy map: {}
[generic] 261MflWkD3N: Requesting header
WARNING: Falling back on generic information extractor.
[generic] 261MflWkD3N: Downloading webpage
[generic] 261MflWkD3N: Extracting information
ERROR: Unsupported URL: https://www.go90.com/embed/261MflWkD3N
Traceback (most recent call last):
  File "/usr/lib64/python3.6/site-packages/youtube_dl/YoutubeDL.py", line 792, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib64/python3.6/site-packages/youtube_dl/extractor/common.py", line 501, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib64/python3.6/site-packages/youtube_dl/extractor/generic.py", line 3269, in _real_extract
    raise UnsupportedError(url)
youtube_dl.utils.UnsupportedError: Unsupported URL: https://www.go90.com/embed/261MflWkD3N

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Should try https://www.go90.com/videos/261MflWkD3N instead of generic extractor