[LegionMammal978]

> if resources were devoted to this

You'd better not jinx it: XSL support seems like just the sort of thing browser devs would want to tear out in the name of reducing attack surface. They already dislike the better-known SVG and never add any new features to it. I often worry that the status quo persists only because they haven't really thought about it in the last 20 years.

[o11c]

Fortunately, XSLT is used by far too many high-importance websites (e.g. official government legal sites) for removing it to be a real threat.