YouTube URIs fail to render thumbnails when oneboxed

[martin (Martin Brennan)]

Okay with that fix merged, this is working now

A Screencast Of LinkedIn Persona Verification Failure

Note that onebox URL responses are cached for 1 day, I had to do this in the console Oneboxer.preview(“https://youtube.com/shorts/Cs3sTnLO6EE”, invalidate_oneboxes: true) to see the new result.