Can Download from safaribooksonline [youtube-dl version 2016.11.08.1]

[trinq]

Hi,
I got this error when download video from safari

debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'https://www.safaribooksonline.com/library/view/introduction-to-alluxio/9781771376006/', u'-u', u'PRIVATE', u'-p', u'PRIVATE', u'--verbose']
[debug] Encodings: locale US-ASCII, fs US-ASCII, out US-ASCII, pref US-ASCII
[debug] youtube-dl version 2016.11.08.1
[debug] Python version 2.7.12 - FreeBSD-11.0-RELEASE-p1-amd64-64bit-ELF
[debug] exe versions: none
[debug] Proxy map: {}
[safari:course] Downloading login form
[safari:course] Logging in as xxxxxx
[safari:course] Login successful
[safari:course] 9781771376006: Downloading course JSON
ERROR: Unable to download JSON metadata: HTTP Error 403: FORBIDDEN (caused by HTTPError()); 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.
File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 404, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 2001, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/local/lib/python2.7/urllib2.py", line 435, in open
response = meth(req, response)
File "/usr/local/lib/python2.7/urllib2.py", line 548, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/local/lib/python2.7/urllib2.py", line 473, in error
return self._call_chain(*args)
File "/usr/local/lib/python2.7/urllib2.py", line 407, in _call_chain
result = func(*args)
File "/usr/local/lib/python2.7/urllib2.py", line 556, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)

Please help fix it.

Thanks you.