Which would be a totally sensible thing you do. Especially if jpeg was a rarely used image format with few libraries supporting it, the main one being unmaintained.

Google is on a trajectory to replace jpeg with webp, haven’t you noticed?

If this were true you could fix this today with the other library. That library is the only implementation used and it’s features are relied upon.

Firefox doesn’t use libxslt. I presume IE didn’t either. It’s only WebKit-heritage browsers that use libxslt.

TIL about Firefox. They have their own in-tree solution. Very interesting but not trivial to use for external projects.