Modern Script Loading
If you're implementing module/nomodule, this might help clarify the trade-offs and options you have available.
http://jasonformat.com/modern-script-loading/ …pic.twitter.com/a3jVXzGfVY
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Also, if you're just sniffing for JS engine level, UA sniffing can be done pretty concisely and generally. Something like the following:https://gist.github.com/domenic/534c1da00ae7d0ed780d3f3d715d4466 …
Let's not encourage more UA sniffing than we already have out there...
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