Arte +7 not supported

[ypnos-web]

Hello,

I would like to download the following video:
http://www.arte.tv/guide/de/061700-000-A/maidan-die-kunst-und-die-revolution

youtube-dl --verbose output:

[debug] System config: []
[debug] User config: []
[debug] Command-line args: ['--verbose', 'http://www.arte.tv/guide/de/061700-000-A/maidan-die-kunst-und-die-revolution']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.01.09
[debug] Python version 3.5.1 - Linux-4.3.3-3-ARCH-x86_64-with-arch
[debug] exe versions: ffmpeg 2.8.5, ffprobe 2.8.5, rtmpdump 2.4
[debug] Proxy map: {}
[arte.tv:+7] 061700-000-A: Downloading webpage
ERROR: Unable to extract iframe url; 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/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 665, in extract_info
ie_result = ie.extract(url)
File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 312, in extract
return self._real_extract(url)
File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/arte.py", line 83, in _real_extract
return self._extract_from_webpage(webpage, video_id, lang)
File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/arte.py", line 98, in _extract_from_webpage
webpage, 'iframe url', group='url')
File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 616, in _html_search_regex
res = self._search_regex(pattern, string, name, default, fatal, flags, group)
File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 607, in _search_regex
raise RegexNotFoundError('Unable to extract %s' % _name)
youtube_dl.utils.RegexNotFoundError: Unable to extract iframe url; 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.

So I went through the HTML myself to find this URL:
https://api.arte.tv/api/player/v1/oembed/de/061700-000-A?platform=ARTEPLUS7&autostart=1&fluid=1

(in this element: <div arte_vp_config="arte_tvguide" arte_vp_lang="de_DE" arte_vp_url_oembed="https://api.arte.tv/api/player/v1/oembed/de/061700-000-A?platform=ARTEPLUS7&amp;autostart=1&amp;fluid=1" class="video-container"></div>)

If you open in in the browser you see it is JSON that contains the <iframe>. If you run youtube-dl on that URL, it will download it as a file.

This is the iframe URL however:
http://www.arte.tv/arte_vp/index.php?json_url=https%3A%2F%2Fapi.arte.tv%2Fapi%2Fplayer%2Fv1%2Fconfig%2Fde%2F061700-000-A%3Fplatform%3DARTEPLUS7%26autostart%3D1&lang=de_DE&config=arte_tvguide

If you open it in the browser the video starts playing.
youtube-dl --verbose gives:

[generic] index.php?json_url=https://api.arte: Requesting header
WARNING: Falling back on generic information extractor.
[generic] index.php?json_url=https://api.arte: Downloading webpage
[generic] index.php?json_url=https://api.arte: Extracting information
ERROR: Unsupported URL: http://www.arte.tv/arte_vp/index.php?json_url=https%3A%2F%2Fapi.arte.tv%2Fapi%2Fplayer%2Fv1%2Fconfig%2Fde%2F061700-000-A%3Fplatform%3DARTEPLUS7%26autostart%3D1&lang=de_DE&config=arte_tvguide
Traceback (most recent call last):
File "/usr/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 665, in extract_info
ie_result = ie.extract(url)
File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 312, in extract
return self._real_extract(url)
File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/generic.py", line 1908, in _real_extract
raise UnsupportedError(url)
youtube_dl.utils.UnsupportedError: Unsupported URL: http://www.arte.tv/arte_vp/index.php?json_url=https%3A%2F%2Fapi.arte.tv%2Fapi%2Fplayer%2Fv1%2Fconfig%2Fde%2F061700-000-A%3Fplatform%3DARTEPLUS7%26autostart%3D1&lang=de_DE&config=arte_tvguide

[dstftw]

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