Hello,
Mathjax exports to html no longer works for me. I tried the alternative
CDN providers:
https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?...
https://cdn.rawgit.com/mathjax/MathJax/2.7.1/MathJax.js
but they've shut down.
There seems to be nothing helpful in either
ORG-NEWS, info or https://www.mathjax.org/cdn-shutting-down/.
Kaushal Modi