Looks like it still doesn't work.

Search for The function smooths an image using the kernel on these pages:

• good: https://docs.opencv.org/4.9.0/javadoc/org/opencv/imgproc/Imgproc.html
• broken (this patch): http://pullrequest.opencv.org/buildbot/export/pr/25180/docs/javadoc/org/opencv/calib3d/Calib3d.html
• broken nightly: https://docs.opencv.org/4.x/javadoc/org/opencv/imgproc/Imgproc.html

It should mostly work now, I've replaced Header attribute in Ant task with bottom, because Header is included on the
page twice and causes creation of two identical script elements which probably breaks MathJax 3. This behavior can be seen in the current 4.9.0 documentation too:

Additionally I've explicitly added ams package, however it should be loaded automatically even without this code (https://docs.mathjax.org/en/latest/web/components/combined.html#tex-chtml).

My local version works well (I checked Aruco), but BuildBot result sometimes do not render our custom macros. This problem goes away when cached scripts are used. I don't know why it happens, scripts seem to be added in correct order and should be executed as described in the MathJax documentation (https://docs.mathjax.org/en/latest/web/configuration.html#using-a-local-file-for-configuration)

When cache is cleared (sometimes all formulas are broken):

When cache is working: