Could you please provide an exact code which is not working on your side?
Paste it here as it's provided on Youtube's Embed tab, it shouldn't be replaced to the actual iframe.
I've tried couple of examples on
miniBB demo, you can also try full links using credentials provided on the first page; and I wasn't able to repeat the problem, the current codes work.
I didn't actually understand what was changed, on YouTube, everything seems the same as already present in the miniBB add-on:
—
encrypted-media — it's already there
—
referrerpolicy="strict-origin-when-cross-origin" is covered by the (.*?) expression.
More infos are required to repeat this bug on my side... and also make sure you are using the codes from the
current package, not that one you may have in your setup...