Register custom protocol/URI scheme handler #4263

Describe the feature

Alternative frontends like Piped could register a custom protocol/URI scheme, so users can chose to be redirected without an extension

navigator.registerProtocolHandler(
  'web+video',
  'https://piped.video/scheme/%s', // redirects to https://piped.video/watch?v=%s.subststring(9)
);

Why would this be useful to add?

To watch videos on Piped, I either have to copy-paste the URL/video ID into Invidious by hand or install a browser extension (which might be a privacy risk). Either way, the burden is on me, when people share videos with YouTube's TLD.

Concept(s)

No response

Additional context

No response

Acknowledgements

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