On that page it says that media source was implemented in 2014, on year before Firefox and Edge. I guess in your world "every other browser" is Chrome. And, su

On that page it says that media source was implemented in 2014, on year before Firefox and Edge. I guess in your world "every other browser" is Chrome. And, sure enough, there are some parts of the API that are only implemented by Chromium-only browsers, and are not implemented by either Safari or Firefox. So, what other untruths you're going to tell us?