I tried to modify the Math style (our source version) by adding the script tag for loading MathJax into the extra-body tag of the config.xml (see attached). importing the style using the style manager I get the error that content.css does not exist or isn’t readable, but that file wasn’t changed. Without that modification the style imports correctly. Is there any documentation explaining this?
It was just that the HTML in extra-body was out of the CDATA section. The XML was not valid, and eXe thrown an error (not the right one, we’ll try to fix that). I attach the Style. I hope it works now. Thanks for finding that error.