[Iconosquare] TypeError: the JSON object must be str, not 'NoneType'

[ghost]

• I've verified and I assure that I'm running youtube-dl 2016.08.12

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

What is the purpose of your issue?

• Bug report (encountered problems with youtube-dl)
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$ youtube-dl -v 'http://statigr.am/p/522207370455279102_24101272'
[debug] System config: []
[debug] User config: ['-4', '-f', 'best', '--prefer-free-formats', '--no-cache-dir', '--no-mtime', '--youtube-skip-dash-manifest']
[debug] Command-line args: ['-v', 'http://statigr.am/p/522207370455279102_24101272']
[debug] Encodings: locale UTF-8, fs utf-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2016.08.12
[debug] Python version 3.5.2+ - Linux-4.7.0-rc7-686-i686-with-debian-stretch-sid
[debug] exe versions: ffmpeg 3.1.2, ffprobe 3.1.2, rtmpdump 2.4
[debug] Proxy map: {}
[Iconosquare] 522207370455279102_24101272: Downloading webpage
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl", line 9, in <module>
    load_entry_point('youtube-dl==2016.8.12', 'console_scripts', 'youtube-dl')()
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/__init__.py", line 433, in main
    _real_main(argv)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/__init__.py", line 423, in _real_main
    retcode = ydl.download(all_urls)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 1786, in download
    url, force_generic_extractor=self.params.get('force_generic_extractor', False))
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/YoutubeDL.py", line 691, in extract_info
    ie_result = ie.extract(url)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/common.py", line 347, in extract
    return self._real_extract(url)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/iconosquare.py", line 37, in _real_extract
    video_id)
  File "/usr/local/lib/python3.5/dist-packages/youtube_dl/extractor/common.py", line 549, in _parse_json
    return json.loads(json_string)
  File "/usr/lib/python3.5/json/__init__.py", line 312, in loads
    s.__class__.__name__))
TypeError: the JSON object must be str, not 'NoneType'

http://statigr.am/p/522207370455279102_24101272

[dstftw]

Redirects to https://pro.iconosquare.com/.