I am using reftagger on a site for a class (wiki.alvinmbc.com) and it works some times and not others. For example. it worked on Chrome but not on Edge, then I refreshed the browser again and it started working on Edge. Some students say it has never worked for them (although maybe they didn't notice). On my Android phone (which has Javascript enabled) it is not working at all, no matter what I do. The code is present just below the closing body tag as expected. Can anybody give me any advice?