Repository: yt-dlp
Issue: HTTP Error 423 on gem.cbc.ca
Labels: account-needed,site-bug,triage,can-share-account

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

- [X] I understand that I will be **blocked** if I *intentionally* remove or skip any mandatory\* field

### Checklist

- [X] I'm reporting that a **supported** site is broken
- [X] I've verified that I'm running yt-dlp version **2023.03.04** ([update instructions](https://github.com/yt-dlp/yt-dlp#update)) or later (specify commit)
- [X] I've checked that all provided URLs are playable in a browser with the same IP and same login details
- [X] I've checked that all URLs and arguments with special characters are [properly quoted or escaped](https://github.com/yt-dlp/yt-dlp/wiki/FAQ#video-url-contains-an-ampersand--and-im-getting-some-strange-output-1-2839-or-v-is-not-recognized-as-an-internal-or-external-command)
- [X] I've searched [known issues](https://github.com/yt-dlp/yt-dlp/issues/3766) and the [bugtracker](https://github.com/yt-dlp/yt-dlp/issues?q=) for similar issues **including closed ones**. DO NOT post duplicates
- [X] I've read the [guidelines for opening an issue](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#opening-an-issue)
- [X] I've read about [sharing account credentials](https://github.com/yt-dlp/yt-dlp/blob/master/CONTRIBUTING.md#are-you-willing-to-share-account-details-if-needed) and I'm willing to share it if required

### Region

Canada

### Provide a description that is worded well enough to be understood

I'm getting a HTTP Error 423 when downloading gem.cbc.ca content. Worked a month ago.

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [ ] If using API, add `'verbose': True` to `YoutubeDL` params instead
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', '--username', 'PRIVATE', '--password', 'PRIVATE', 'https://gem.cbc.ca/media/murdoch-mysteries/s01e04']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version stable@2023.03.04 [392389b7d] (pip)
[debug] Python 3.10.9 (CPython x86_64 64bit) - Linux-5.15.0-67-generic-x86_64-with-glibc2.36 (OpenSSL 3.0.7 1 Nov 2022, glibc 2.36)
[debug] exe versions: none
[debug] Optional libraries: Cryptodome-3.17, brotli-1.0.9, certifi-2022.12.07, mutagen-1.46.0, sqlite3-2.6.0, websockets-10.4
[debug] Proxy map: {}
[debug] Loaded 1786 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Available version: stable@2023.03.04, Current version: stable@2023.03.04
yt-dlp is up to date (stable@2023.03.04)
[debug] Using fake IP 99.236.77.137 (CA) as X-Forwarded-For
[gem.cbc.ca] Extracting URL: https://gem.cbc.ca/media/murdoch-mysteries/s01e04
[gem.cbc.ca] murdoch-mysteries/s01e04: Downloading JSON metadata
[gem.cbc.ca] Downloading JSON metadata
ERROR: [gem.cbc.ca] murdoch-mysteries/s01e04: Unable to download JSON metadata: HTTP Error 423:  (caused by <HTTPError 423: ''>); please report this issue on  https://github.com/yt-dlp/yt-dlp/issues?q= , filling out the appropriate issue template. Confirm you are on the latest version using  yt-dlp -U
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 694, in extract
    ie_result = self._real_extract(url)
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/cbc.py", line 353, in _real_extract
    claims_token = self._get_claims_token(email, password)
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/cbc.py", line 306, in _get_claims_token
    self._claims_token = self._new_claims_token(email, password)
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/cbc.py", line 262, in _new_claims_token
    resp = self._download_json('https://api.loginradius.com/identity/v2/auth/login',
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 1048, in download_content
    res = getattr(self, download_handle.__name__)(url_or_request, video_id, **kwargs)
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 1012, in download_handle
    res = self._download_webpage_handle(
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 882, in _download_webpage_handle
    urlh = self._request_webpage(url_or_request, video_id, note, errnote, fatal, data=data, headers=headers, query=query, expected_status=expected_status)
  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 839, in _request_webpage
    raise ExtractorError(errmsg, cause=err)

  File "/usr/lib/python3.10/site-packages/yt_dlp/extractor/common.py", line 821, in _request_webpage
    return self._downloader.urlopen(self._create_request(url_or_request, data, headers, query))
  File "/usr/lib/python3.10/site-packages/yt_dlp/YoutubeDL.py", line 3742, in urlopen
    return self._opener.open(req, timeout=self._socket_timeout)
  File "/usr/lib/python3.10/urllib/request.py", line 525, in open
    response = meth(req, response)
  File "/usr/lib/python3.10/urllib/request.py", line 634, in http_response
    response = self.parent.error(
  File "/usr/lib/python3.10/urllib/request.py", line 563, in error
    return self._call_chain(*args)
  File "/usr/lib/python3.10/urllib/request.py", line 496, in _call_chain
    result = func(*args)
  File "/usr/lib/python3.10/urllib/request.py", line 643, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 423:
```