I originally had the \. in there, but I actually took it out, since I just wanted to keep it simpler. Since the . will still match a dot, and the likely hood of there being pages intentionally named /page5html is pretty small.

The missing slash before other.html, however, is definitely a typo.

Basically just trying to keep the regex to a minimum to avoid distractions. Maybe it is a bad choice, don’t know.

Your filter says: allow “/page5html”, “theother.html”, “justanother@html”, etc. That’s because the dot stands for “any character” and the slash doesn’t have to be in front of “other”. In my filter I escape the dot and I make sure there’s a slash before “other”