> Think about it: a feature detection API that itself needs to be detected There's already at least one such feature in the form of CSS.supports: https://devel

> Think about it: a feature detection API that itself needs to be detected There's already at least one such feature in the form of CSS.supports: https://developer.mozilla.org/en-US/docs/Web/API/CSS/supports https://developer.mozilla.org/en-US/docs/Web/API/CSS/support...