Repository: yt-dlp
Issue: ERROR: [PlatziCourse] canvas: Unable to extract window.initialData
Labels: site-bug,triage

### DO NOT REMOVE OR SKIP THE ISSUE TEMPLATE

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

### Checklist

- [X] I'm reporting a bug unrelated to a specific site
- [X] I've verified that I'm running yt-dlp version **2022.10.04** ([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 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)

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

 yt-dlp -vU --cookies platzi.com_cookies.txt --verbose https://platzi.com/clases/canvas/

### Provide verbose output that clearly demonstrates the problem

- [X] Run **your** yt-dlp command with **-vU** flag added (`yt-dlp -vU <your command line>`)
- [X] Copy the WHOLE output (starting with `[debug] Command-line config`) and insert it below

### Complete Verbose Output

```shell
[debug] Command-line config: ['-vU', '--cookies', 'platzi.com_cookies.txt', '--verbose', 'https://platzi.com/clases/canvas/']
[debug] Encodings: locale UTF-8, fs utf-8, pref UTF-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version 2022.10.04 [4e0511f] (pip) API
[debug] Python 3.9.9 (CPython 64bit) - Linux-5.15.45-amd64-desktop-x86_64-with-glibc2.33 (glibc 2.33)
[debug] Checking exe version: ffmpeg -bsfs
[debug] Checking exe version: ffprobe -bsfs
[debug] exe versions: ffmpeg 4.3.4 (fdk), ffprobe 4.3.4
[debug] Optional libraries: Cryptodome-3.15.0, brotli-1.0.9, certifi-2022.06.15, mutagen-1.46.0, secretstorage-3.3.3, sqlite3-2.6.0, websockets-10.1
[debug] Proxy map: {}
[debug] Loaded 1690 extractors
[debug] Fetching release info: https://api.github.com/repos/yt-dlp/yt-dlp/releases/latest
Latest version: 2022.10.04, Current version: 2022.10.04
yt-dlp is up to date (2022.10.04)
[debug] [PlatziCourse] Extracting URL: https://platzi.com/clases/canvas/
[PlatziCourse] canvas: Downloading webpage
ERROR: [PlatziCourse] canvas: Unable to extract window.initialData; 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 "/home/development/Documents/Download-platzi/venv/lib/python3.9/site-packages/yt_dlp/extractor/common.py", line 672, in extract
    ie_result = self._real_extract(url)
  File "/home/development/Documents/Download-platzi/venv/lib/python3.9/site-packages/yt_dlp/extractor/platzi.py", line 149, in _real_extract
    initialData = self._search_regex(
  File "/home/development/Documents/Download-platzi/venv/lib/python3.9/site-packages/yt_dlp/extractor/common.py", line 1224, in _search_regex
    raise RegexNotFoundError('Unable to extract %s' % _name)
```