Example: https://commons.wikimedia.org/wiki/File%3ACuriosity%27s_Seven_Minutes_of_Terror.ogv?embedplayer=yes
JS errs include:
ReferenceError: mw is not defined
"TypeError: mw.mergeConfig is not a function"
Error: Error loading EmbedPlayer dependency set: One or more dependencies failed to load
Might be a regression related to ogv.js merge. :(