use CancelColor in mathjax

Question

I want to use \cancel{·} in mathjax. with a crossed line of different color, explained here.

I use

\[
enter code here
\require{xcolor}
\require{cancel}
\renewcommand\CancelColor{\color{red}}

\cancel{x^2}
\]

But is not working. Any ideas?

Answer 1

for future references, a good answer was given in tex Stack Exchange here