Instagram: 403 on public video

[Znuff]

Checklist

• I'm reporting a broken site support
• I've verified that I'm running youtube-dl version 2019.09.28
• I've checked that all provided URLs are alive and playable in a browser
• I've checked that all URLs and arguments with special characters are properly quoted or escaped
• I've searched the bugtracker for similar issues including closed ones

Verbose log

[debug] System config: []
[debug] User config: []
[debug] Custom config: []
[debug] Command-line args: [u'-u', u'PRIVATE', u'-p', u'PRIVATE', u'https://www.instagram.com/p/B3h5LlEBL2X/', u'-v']
[debug] Encodings: locale UTF-8, fs UTF-8, out UTF-8, pref UTF-8
[debug] youtube-dl version 2019.09.28
[debug] Python version 2.7.15+ (CPython) - Linux-4.4.0-18362-Microsoft-x86_64-with-Ubuntu-18.04-bionic
[debug] exe versions: ffmpeg 3.4.6, ffprobe 3.4.6
[debug] Proxy map: {}
[Instagram] B3h5LlEBL2X: Downloading webpage
[debug] Default format spec: bestvideo+bestaudio/best
[debug] Invoking downloader on u'https://static.cdninstagram.com/rsrc.php/null.jpg'
ERROR: unable to download video data: HTTP Error 403: Forbidden
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1925, in process_info
    success = dl(filename, info_dict)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 1864, in dl
    return fd.download(name, info)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/downloader/common.py", line 366, in download
    return self.real_download(filename, info_dict)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/downloader/http.py", line 341, in real_download
    establish_connection()
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/downloader/http.py", line 109, in establish_connection
    ctx.data = self.ydl.urlopen(request)
  File "/usr/local/lib/python2.7/dist-packages/youtube_dl/YoutubeDL.py", line 2237, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python2.7/urllib2.py", line 435, in open
    response = meth(req, response)
  File "/usr/lib/python2.7/urllib2.py", line 548, in http_response
    'http', request, response, code, msg, hdrs)
  File "/usr/lib/python2.7/urllib2.py", line 473, in error
    return self._call_chain(*args)
  File "/usr/lib/python2.7/urllib2.py", line 407, in _call_chain
    result = func(*args)
  File "/usr/lib/python2.7/urllib2.py", line 556, in http_error_default
    raise HTTPError(req.get_full_url(), code, msg, hdrs, fp)
HTTPError: HTTP Error 403: Forbidden

Description

Site has changed something, you can no longer grab the data. I tried with/without username, I tried with/without my browsers' user-agent.

[dstftw]

Does not play in browser.

[Znuff]

Plays fine in browser if you are logged in.

Instagram changed their video stuff. Some videos randomly don't play if you're not logged on anymore, not sure what the criteria is.