At the bottom of the front page of the Guidelines as currently processed (see e.g. http://www.stoa.org/epidoc/gl/dev/index.html) appears a load of junk text, just above the footer, listing all element and attribute classes modified in the EpiDoc ODD. If this belongs anywhere it should be in a page of its own; I think it should just be suppressed. Anyone find the code that creates it?
The driver.xml file included the epidoc.odd file in a <back> element. The back element wasn't being handled, so its contents were just defaulting to visible. Gabby added an empty match for <back> in the XSL which solved the problem. Closed!