Use KaTeX instead of MathJax

[ggrossetie]

MathJax is great but the rendering is a bit slow and the complete bundle size is roughly 5 Mb... As an alternative we could use KaTex: https://katex.org/docs/browser.html

[mojavelinux]

What I would recommend is making the switch and seeing what kind of feedback you get from users. If there are a lot of complaints about KaTeX, then you could consider making it an option, like stem-engine.

We may want to agree on how this integrates into core, then do it here.

[bybor]

AFAIK, KaTeX doesn't support AsciiMath, while MathJax does (at least MJ version 2 does support it).

I don't know what you pick, but this extension is a very nice and pretty easy way to render a local asciidoc file.

I don't know if you can cache MJ lib locally to address its size issue. Or if it comes with extension in the same bundle?

But I would vote for universality vs other considerations.

Thank you!!!

[ggrossetie]

I don't know if you can cache MJ lib locally to address its size issue. Or if it comes with extension in the same bundle?

It comes with the extension in the same bundle.
This is just a proposal, KaTeX looks great on paper but, as you mentioned, lacks some features so we will probably stick with MathJax.

[rben01]

I much prefer KaTeX to MathJax — I find it is faster and produces nicer-looking output. I'd be in favor of a stem-engine attribute, or perhaps adding latexmath-mathjax and latexmath-katex as options to :stem:.