Is this using images for math? Can it use Mathjax for math? Mathjax has nice accessibility tools that is very good for reading math.
MathML has terrible browser support [1] and often results in inconsistently rendered, ugly equations.
MathJax and KaTeX are nice but sometimes I prefer not to have JavaScript for these things that ought to be static.
It's being worked on again though https://www.chromestatus.com/feature/5240822173794304 by https://mathml.igalia.com/