TBF even the spec authors are a bit confused about that attribute: https://github.com/whatwg/html/issues/5466 https://github.com/whatwg/html/issues/5466 It has

TBF even the spec authors are a bit confused about that attribute: https://github.com/whatwg/html/issues/5466 https://github.com/whatwg/html/issues/5466 It has complex and non-obvious effects. greggman on the three.js issue wrote a really nice summary on why it shouldn't be the default. It's really only appropriate for highly latency sensitive applications, like drawing or certain games.