Important: CDN files have link to cdn.mathjax.org which break the rendering on ALL websites

Created by: q2apro

I just realized today that the CDN versions of Mathjax, even the latest https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/MathJax.js?config=TeX-AMS_HTML&locale=de have a link to the obsolete mathjax.org site:

b.Contrib="https://cdn.mathjax.org/mathjax/contrib";

which leads to:

GET https://cdn.mathjax.org/mathjax/contrib/a11y/accessibility-menu.js?V=2.7.0 net::ERR_CONNECTION_TIMED_OUT

And breaks all Mathjax renderings.

I strongly advise to fix this as soon as possible. And push the new files to the CDNs (with a relative path?).