# Is a package (e.g., \require {cancel}) still needed for a diagonal strikeout in MathJax?

This post, from six years ago, indicates a diagonal strikeout (e.g., for unit cancellation) can be done by calling the \require {cancel} package: Additions to MathJax/mhchem: Cancel, Broken Arrows; SI units

Can a diagonal strikeout now be done without a package, or is a package still required?

Note: I'm not asking if \cancel still requires a package; it does. I'm asking if there is currently any way of implementing a diagonal strikeout without needing a package.