When I access any pages at the PyX online Reference Manual
an error message popup is displayed, the text of the error message follows:
MathJax no longer loads a default configuration file; you must specify such files explicitly. This page seems to use the older default config/MathJax.js file, and so needs to be updated. This is explained further at
It seems there is nothing I can do as a reader of the manual, only the author of the pages can fix this. It is distracting.