Native MathML rendering doesn't work on the numpy and scipy documentation websites

Hello everyone,

I use a browser extension by the name of "Native MathML" which forces formula rendering engines like MathJax/KaTeX/MediaWIki to use native MathML rendering. The extension seems to be working on other websites (including Wikipedia, tell me if you know of other websites where I can test this for comparison), but it doesn't work on the numpy and scipy documentation websites. (I seem to remember it working in the past, but I'm not 100% sure now)

To illustrate the issue, I've included two screenshots:

one where the extension is activated:

and a second one where the extension is deactivated:

My browser is Firefox version 99.0.1 (64-bit)

Reproduziere den Darstellungsunterschied auf den Dokumentationswebsites von NumPy und SciPy mit Firefox 99.0.1 sowie aktivierter und deaktivierter Native MathML-Erweiterung. Vergleiche die Darstellung der generierten Formeln mit der dokumentierten Darstellungskonfiguration der Websites; abgeschlossen ist die Aufgabe, wenn die native MathML-Darstellung auf beiden Websites konsistent funktioniert.