/language/filters - f.default.existsSync is not a function

[Bestulo]

I'm pretty sure that something should be displayed on that right panel. The path is https://pugjs.org/language/filters.html, under Nested Filters.

(In case it's a browser problem, I'm on Chrome on Debian, latest version).

[hughsw]

This issue appears to be obsolete, but filters doc is still broken