I had a snafu upgrading the ogv.js audio/video playback which broke playback in the latest versions of Safari and Edge for a couple days.
Problem was that the new version of ogv.js used the WebAssembly (wasm) builds of the codecs by default on supporting browsers, but our server setup wasn't willing to actually serve the files. For the moment I've disabled wasm and switched it back to the pure-JavaScript version of the codecs.
(Performance is similar currently, but the wasm builds load and compile faster in the browser.)
I'd also like to have a bigger discussion about use of things like WebAssembly in JavaScript libraries we pull in, and what kind of packaging and maintenance issues this may have. Will talk over on wikitech-l...
-- brion
multimedia@lists.wikimedia.org