undefined in JS code

[lachrist]

Hi, first thanks for porting markdown to npm!
It seems you do not print well 'undefined' identifier within javascript code listing (cf my project github/lachrist/aran).
Github:

Npm:

Regards, Laurent

[zeke]

This fix will land when we ship newww's r2 branch, which has a newer version of marky-markdown (5) with the updated sanitize-html dependency: https://github.com/npm/marky-markdown/releases