It works alright but I have a couple of suggestions. It would be nice to accept "https://youtu.be/videoid" links. And the input box is kind of glitchy and I'd rather be able to left click on the input box to paste in links since you have to right click instead (look at BeamNG's "Thumbnail Generator" app where it allows left clicking as well).
Typical BeamNG.... There comes something usefull and it's broken instantly. Like always! In this case it's the youtube ID... but there are other
streamservices also: vimeo and so on. Youtube Apps break always.
Eather you make a mod and support it livelong or let it be.... that's that always changing and breaking BeamNG-Modkiller and Youtube WAY.