Youku has stopped working

[FranSalguero]

Make sure you are using the latest version: run youtube-dl --version and ensure your version is 2018.03.14. 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 Issues with outdated version will be rejected.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 2018.03.14

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)
• Site support request (request for adding support for a new site)
• Feature request (request for a new functionality)
• Question
• Other

youtube-dl http://v.youku.com/v_show/id_XMjA0MjA3OTk2 --verbose
[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: ['http://v.youku.com/v_show/id_XMjA0MjA3OTk2', '--ver
bose']
[debug] Encodings: locale cp1252, fs mbcs, out cp850, pref cp1252
[debug] youtube-dl version 2018.01.14
[debug] Python version 3.4.4 (CPython) - Windows-7-6.1.7601-SP1
[debug] exe versions: none
[debug] Proxy map: {}
[youku] XMjA0MjA3OTk2: Retrieving cna info
[youku] XMjA0MjA3OTk2: Downloading JSON metadata
ERROR: Youku server reported error -6004: ???????,201; please report this issue

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Description of your issue, suggested solution and other information

It seems Youku extractor have stopped working. JSON metadata request answers something like "Client does not have permission to play" in chinese.