[V2] MathJax taken no effect on bing.com pages.

I was trying to typeset some LaTeX on bing.com pages, tried the following code, however it taken none changes, the formulas won't be typeset at all.

var ele = document.createElement('script');
document.head.appendChild(ele);
ele.src = 'https://cdn.bing.com/npm/mathjax@2/MathJax.js?config=TeX-AMS_CHTML';
ele.async = true;

MathJax.Hub.Queue(["Typeset", MathJax.Hub]);

I want to debug and find out why, however I don't know how to do it. If anyone can help, I will be grateful, thanks.