Periscope : ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (caused by HTTPError())

[plefr]

I'm using youtube-dl version 2015.12.09 and I can't download any videos on Periscope. Someone reported the issue in #7359 and was closed but it seems this issue is happening again.
I tried downloading https://www.periscope.tv/w/aUiuETIxMjQ1MDB8MWdxeHZ3UEFaTWFLQpn5vonFihNyeaegkWCIgQ1eCzTN1BtH96ylDOSrNjUS and https://www.periscope.tv/w/aUitwDFXZ0tneWFXeEpFdlB8MWt2SnBZd2xxT2J4RTeZ_fdDmVkEUtcxQ5yZ6YtQseK_39R3CxNTXb5a8RrW but it fails.

Here is the output :
[debug] System config: []
[debug] User config: []
[debug] Command-line args: [u'-v', u'https://www.periscope.tv/w/aUitwDFXZ0tneWFXeEpFdlB8MWt2SnBZd2xxT2J4RTeZ_fdDmVkEUtcxQ5yZ6YtQseK_39R3CxNTXb5a8RrW']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2015.12.09
[debug] Python version 2.7.10 - Linux-4.2.0-22-generic-x86_64-with-Ubuntu-15.10-wily
[debug] exe versions: avconv 2.7.3-0ubuntu0.15.10.1, avprobe 2.7.3-0ubuntu0.15.10.1, ffmpeg 2.7.3-0ubuntu0.15.10.1, ffprobe 2.7.3-0ubuntu0.15.10.1, rtmpdump 2.4
[debug] Proxy map: {}
[Periscope] aUitwDFXZ0tneWFXeEpFdlB8MWt2SnBZd2xxT2J4RTeZ_fdDmVkEUtcxQ5yZ6YtQseK_39R3CxNTXb5a8RrW: Downloading JSON metadata
ERROR: Unable to download JSON metadata: HTTP Error 400: Bad Request (caused by HTTPError()); 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.
File "/usr/lib/python2.7/dist-packages/youtube_dl/extractor/common.py", line 329, in _request_webpage
return self._downloader.urlopen(url_or_request)
File "/usr/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1884, in urlopen
return self._opener.open(req, timeout=self._socket_timeout)
File "/usr/lib/python2.7/urllib2.py", line 437, in open
response = meth(req, response)
File "/usr/lib/python2.7/urllib2.py", line 550, in http_response
'http', request, response, code, msg, hdrs)
File "/usr/lib/python2.7/urllib2.py", line 475, in error
return self._call_chain(_args)
File "/usr/lib/python2.7/urllib2.py", line 409, in _call_chain
result = func(_args)
File "/usr/lib/python2.7/urllib2.py", line 558, in http_error_default
raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)