Repository: youtube-dl
Issue: Please add support for new BBC sounds (etc) onion site
Labels: site-support-request

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## Checklist

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Carefully read and work through this check list in order to prevent the most common mistakes and misuse of youtube-dl:
- First of, make sure you are using the latest version of youtube-dl. Run `youtube-dl --version` and ensure your version is 2019.10.22. If it's not, see https://yt-dl.org/update on how to update. Issues with outdated version will be REJECTED.
- Make sure that all provided video/audio/playlist URLs (if any) are alive and playable in a browser.
- Make sure that site you are requesting is not dedicated to copyright infringement, see https://yt-dl.org/copyright-infringement. youtube-dl does not support such sites. In order for site support request to be accepted all provided example URLs should not violate any copyrights.
- Search the bugtracker for similar site support requests: http://yt-dl.org/search-issues. DO NOT post duplicates.
- Finally, put x into all relevant boxes (like this [x])
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- [x] I'm reporting a new site support request
- [x] I've verified that I'm running youtube-dl version **2019.10.22**
- [x] I've checked that all provided URLs are alive and playable in a browser
- [x] I've checked that none of provided URLs violate any copyrights
- [x] I've searched the bugtracker for similar site support requests including closed ones


## Example URLs

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Provide all kinds of example URLs support for which should be included. Replace following example URLs by yours.
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-  Example BBC sounds onion https://www.bbcnewsv2vjtpsuy.onion/sounds/play/b01jqjl5
-  Non-onion example of above https://www.bbc.co.uk/sounds/play/b01jqjl5



## Description

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The [BBC has launched](https://www.bbc.com/news/technology-50150981) a new onion service.

Proxying youtube-dl over Tor Browser's tor connection fails with

```
$ youtube-dl -4 --geo-bypass --proxy "socks4a://127.0.0.1:9150" -F https://www.bbcnewsv2vjtpsuy.onion/sounds/play/b01jqjl5
[generic] b01jqjl5: Requesting header
WARNING: Falling back on generic information extractor.
[generic] b01jqjl5: Downloading webpage
[generic] b01jqjl5: Extracting information
ERROR: Unsupported URL: https://www.bbcnewsv2vjtpsuy.onion/sounds/play/b01jqjl5
```

Proxying over Tor Browser to the regular BBC sounds site works.

There are other sub-sites on the BBC that are related, that host radio programs etc.
These produce the same "Unsupported URL" error:

BBC Radio 4
https://www.bbcnewsv2vjtpsuy.onion/radio4

BBC Radio 4 Extra
https://www.bbcnewsv2vjtpsuy.onion/radio4extra

BBC Work Service Radio
https://www.bbcnewsv2vjtpsuy.onion/worldserviceradio

Cheers


Edit: For clarity, you need Tor Browser open when your are proxying over its Tor connection, then you just run youtube-dl with the proxy command above.