Can you give an example of a player/feature combo where this is the case? For general player features there's not really an excuse for only working in one browser, but features like Casting can be browser dependent because the browser has to expose that functionality. Other interesting prototypes rely on a new API called Web Codecs that isn't fully supported everywhere.
In the core JS of Video.js v10 we're building without the assumption of there even being a browser involved so we can point to future JS-based platforms like React Native.
In the core JS of Video.js v10 we're building without the assumption of there even being a browser involved so we can point to future JS-based platforms like React Native.