[pokemon] Unable to extract video data element

[ghost]

• I've verified and I assure that I'm running youtube-dl 2018.01.18

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• At least skimmed through the README, most notably the FAQ and BUGS sections
• Searched the bugtracker for similar issues including closed ones

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• Bug report (encountered problems with youtube-dl)
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https://www.pokemon.com/uk/pokemon-episodes/?play=2e8b5c761f1d4a9286165d7748c1ece2#

ERROR: Unable to extract video data element; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/youtube_dl/YoutubeDL.py", line 784, in extract_info
    ie_result = ie.extract(url)
  File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 438, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/pokemon.py", line 43, in _real_extract
    webpage, 'video data element'))
  File "/usr/lib/python3.6/site-packages/youtube_dl/extractor/common.py", line 794, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract video data element; please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; see  https://yt-dl.org/update  on how to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

[remitamine]

it's an expired only_matching test, just to make sure that changes in _VALID_URL regex does not effect the supported urls, new videos are still supported:

youtube-dl -f best https://www.pokemon.com/uk/pokemon-episodes/?play=4ccd76d9063c4b6d8fe3317e1fff44af
[Pokemon] 4ccd76d9063c4b6d8fe3317e1fff44af: Downloading webpage
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Downloading PlaylistService getPlaylistByMediaId JSON
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Downloading API properties JSON
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Downloading PlaylistService getMobilePlaylistByMediaId JSON
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Checking http-832 URL
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Checking http-128 URL
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Checking http-1600 URL
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Checking http-472 URL
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Checking http-1072 URL
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Checking http-322 URL
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Checking http-1328 URL
[limelight] 4ccd76d9063c4b6d8fe3317e1fff44af: Downloading m3u8 information
[download] Destination: Pokémon - The First Movie-4ccd76d9063c4b6d8fe3317e1fff44af.mp4
[download]   0.0% of 921.11MiB at 149.86KiB/s ETA 01:44:51