Repository: yt-dlp
Issue: [Rai] Failed to parse JSON
Labels: site-bug,triage

### 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 yt-dlp is broken on a **supported** site
- [X] I've verified that I have **updated yt-dlp to nightly or master** ([update instructions](https://github.com/yt-dlp/yt-dlp#update-channels))
- [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)
- [ ] 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

Italy (shouldn't be blocked outside)

### Provide a description that is worded well enough to be understood

The Rai extractor stopped working with a "Failed to parse JSON" error

### 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: ['-v', 'https://www.rai.it/programmi/report/inchieste/Questione-di-lobby-9fbdb9dc-3765-4377-823e-58db0561a4f2.html', '--ignore-config']
[debug] Encodings: locale utf-8, fs utf-8, pref utf-8, out utf-8, error utf-8, screen utf-8
[debug] yt-dlp version nightly@2025.01.12.232754 from yt-dlp/yt-dlp-nightly-builds [dade5e35c] (pip)
[debug] Python 3.12.7 (CPython aarch64 64bit) - Linux-4.19.191-28577532-abA346BXXU9CXK1-aarch64-with-libc (OpenSSL 3.3.2 3 Sep 2024, libc)
[debug] exe versions: ffmpeg 6.1.2 (setts), ffprobe 6.1.2
[debug] Optional libraries: Cryptodome-3.21.0, brotli-1.1.0, certifi-2024.08.30, mutagen-1.47.0, requests-2.32.3, sqlite3-3.47.1, urllib3-2.2.3, websockets-13.1
[debug] Proxy map: {}
[debug] Request Handlers: urllib, requests, websockets
[debug] Post-Processor Plugins: FixupMtimePP
[debug] Plugin directories: ['/data/data/com.termux/files/usr/lib/python3.12/site-packages/yt_dlp_plugins']
[debug] Loaded 1837 extractors
[Rai] Extracting URL: https://www.rai.it/programmi/report/inchieste/Questione-di-lobby-9fbdb9dc-3765-4377-823e-58db0561a4f2.html
[Rai] 9fbdb9dc-3765-4377-823e-58db0561a4f2: Downloading video JSON
WARNING: [Rai] 9fbdb9dc-3765-4377-823e-58db0561a4f2: Failed to parse JSON: Expecting value in '': line 1 column 1 (char 0)
WARNING: Extractor Rai returned nothing; 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
```