Vrtnu running with username and password: age restriction not handled correctly

Checklist

• [ x] I’m reporting a broken site support
• [ x] I’ve verified that I’m running youtube-dl version 2021.04.26
• [ x] I’ve checked that all provided URLs are alive and playable in a browser
• [ x] I’ve checked that all URLs and arguments with special characters are properly quoted or escaped
• [ x] 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: ['-v', '-u', 'PRIVATE', '-p', 'PRIVATE', 'https://www.vrt.be/vrtnu/a-z/petra/1/petra-s1a2/']
[debug] Encodings: locale UTF-8, fs utf-8, out utf-8, pref UTF-8
[debug] youtube-dl version 2021.04.26
[debug] Python version 3.8.5 (CPython) - Linux-5.8.0-53-generic-x86_64-with-glibc2.29
[debug] exe versions: ffmpeg 4.2.4, ffprobe 4.2.4, rtmpdump 2.4
[debug] Proxy map: {}
[VrtNU] Logging in
[VrtNU] Requesting a token
[VrtNU] petra-s1a2: Downloading webpage
[Canvas] pbs-pub-e3cd125e-b92d-4142-a860-dc819cdd9424$vid-c358d4e5-e805-4db1-8c92-ccc087ead5ca: Downloading token
[Canvas] pbs-pub-e3cd125e-b92d-4142-a860-dc819cdd9424$vid-c358d4e5-e805-4db1-8c92-ccc087ead5ca: Downloading video JSON
ERROR: Age category 0+ is not allowed to access 12+ content
Traceback (most recent call last):
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 806, in wrapper
    return func(self, *args, **kwargs)
  File "/usr/local/bin/youtube-dl/youtube_dl/YoutubeDL.py", line 827, in __extract_info
    ie_result = ie.extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/common.py", line 534, in extract
    ie_result = self._real_extract(url)
  File "/usr/local/bin/youtube-dl/youtube_dl/extractor/canvas.py", line 80, in _real_extract
    raise ExtractorError(data.get('message') or code, expected=True)
youtube_dl.utils.ExtractorError: Age category 0+ is not allowed to access 12+ content

Description

Can not download age restricted video from https://www.vrt.be/vrtnu/ (e.g. https://www.vrt.be/vrtnu/a-z/petra/1/petra-s1a2/), although my account allows playing it. An account can be made from the site: https://www.vrt.be/vrtnu/

[chaff02]

No problem Matthias. Your code at #29044 (comment) works for me. I only have to replace the value of the identityToken by the actual value of the ‘vrtnu-site_profile_vt’ cookie from www.vrt.be. However this cookie has a short lifetime, as a result many ‘make youtube-dl’ commands. Success with your exams.

[MatthiasCoppens]

@sharethewisdom: This enables me to download https://www.vrt.be/vrtnu/a-z/before-we-die/2/before-we-die-s2a1/:

headers.update({'Content-Type': 'application/json'})
identityToken = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJodHRwczovL3Rva2VuLnZydC5iZSIsInN1YiI6IjY3NmJjMTk1MDAwNzQ1MWFiMTU2NGNjYjI5NTdmZjJjIiwibmV3c3ViIjoiMTQ1ODRjZmUtMjllNC00NzZhLWI1NDEtYjM5MWJhOTc3M2U4IiwiY291IjoiQkUiLCJhZ2UiOjI0LCJhdWQiOiIvdnJ0bnUiLCJpYXQiOjE2MjE3Nzg2MDgsImV4cCI6MTYyMTc4MjIwOCwiYWMiOiIxNisifQ.g8lM8aQX9tVacP9OUz8EAplGac76v5P9wBT8DlXGoDwQvVLncNcafnZiI5OYwVsClcMJBScAsRVKdgSXPXWT9DuPhlfyUs49zpgz-Xb05NHDAIFuFxv0DTNOB9FJEqcMGho4ehl5_524ZoIa9PavlzmPRee-Y9HKw1f-E3o3rkws73GFYAkOhTjXqo55Gg3_HCOqfJEqgKrYzvF-ILMmY9XRqVmn4c1Fw5tTcBspt77h6nKkpb6S231BQELTurJtF7-zwixuKSwZZbdhnruTFUUYlPMK4Y71ZP8PmIapappGXuf7r162FqHEVMgX1UmxWgVdHBPGzaCrNsTZtM3jWzgSlsaopN9u78cKs1N7MKxqXmD2har2a1FJBMDT0XK-oqlMRF8afTnaNEMlHixpz8M-Y4xOcDiUCPmhSCPCiLxJVmcApMM-h_jixwE04eHMYAEndseWp5cZAkz7R3p0oGmrTnYne5xTEJ5-myq3HLtzGfsAkq873e0PepEqv4mDvEEQOUWzmOL44TUQboPv8Ju267Jk3stTBhUcXvKLoFDHmvFJxj_a77QSrnLtaSvLpIqQKjvigC6JejVjwHfe3TQuBDMdeZoH3maW0s9dyM3cK6fMLTI6eS0lqQ3Oct2YM3kvV3XHGO70QD_pLpCY1YbE2YpteWZbfC-2PY-5dP0"
post_data = json.dumps({"identityToken": identityToken}).encode()
token = self._download_json(
    '%s/tokens' % self._REST_API_BASE, video_id,
    'Downloading token',
    data=post_data,
    headers=headers)['vrtPlayerToken']