[safaribooksonline] - Unable to download JSON metadata: HTTP Error 403

[ghost]

Youtube-dl is updated but I can not download from safaribooksonline

youtube-dl --version
2016.07.16

Error

./youtube-dl --username myusername --password mypassword https://www.safaribooksonline.com/library/view/something/numbers2222/
[safari:course] Downloading login form
[safari:course] Logging in as myusername
[safari:course] Login successful
[safari:course] numbers2222: Downloading course JSON
ERROR: Unable to download JSON metadata: HTTP Error 403: FORBIDDEN (caused by <HTTPError 403: 'FORBIDDEN'>); please report this issue on https://yt-dl.org/bug . Make sure you are using the latest version; type  youtube-dl -U  to update. Be sure to call youtube-dl with the --verbose flag and include its complete output.

--verbose

File "/usr/lib/python3.5/site-packages/youtube_dl/extractor/common.py", line 390, in _request_webpage
    return self._downloader.urlopen(url_or_request)
  File "/usr/lib/python3.5/site-packages/youtube_dl/YoutubeDL.py", line 1950, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python3.5/urllib/request.py", line 472, in open
    response = meth(req, response)
  File "/usr/lib/python3.5/urllib/request.py", line 582, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python3.5/urllib/request.py", line 510, in error
    return self._call_chain(*args)
  File "/usr/lib/python3.5/urllib/request.py", line 444, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.5/urllib/request.py", line 590, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)

P.S.

myusername, mypassword and course's URL is changes

[dstftw]

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