Also add polyfills. Few devices (usually the slightly older fw locked devices) which can get a reuse on local net will get some reuse benefit if you added poly

Also add polyfills. Few devices (usually the slightly older fw locked devices) which can get a reuse on local net will get some reuse benefit if you added polyfills. I am doing this by conditional "polyfills with SSR" with nginx/lua at the moment. (kindle os/etc. is a pretty good catchall proxy for those browsers; since they still show some html, you can get a very reliable static+interactive (page refresh syncs nicely with the latency) use out of them. (actually, just to periodically update the view of some react page, running headless...) Edit: Well, that's an extreme, but it has happened that latest react code won't work on a newly unwrapped device still awaiting next fw update).