> Ancient browser support is a thing
And weird browser support.
People use the oddest devices to do "on demand" jobs (receiving a tiny amount of money for a small amount of work). Although there aren't that many, I've seen user agents from game consoles, TVs, old Androids, iPod touch, and from Facebook and other "browser makers", with names such as Agency, Herring, Unique, ABB, HIbrowser, Vinebre, Config, etc. Some of the latter look to be Chrome or Safari skins, but there's no way to tell; I don't know what they are. And I must assume that quite a few devices cannot be upgraded. So I support old and weird browsers. The code contains one externally written module (stored in the repository), so it's only a matter of the correct transpiler settings.