This is weird: my popups work when previewing topics in
RoboHelp (Office X5), but when I build the WebHelp when I click on
they don't appear.
I have other WebHelp projects with working popups, so this is
really confusing. I've tried removing the popups and re-creating
them, but they still don't show and I still get the error.
You might want to take a look at the supporting ehlpdhtm.js
file and ensure it is properly pathed. I seem to recall back when I
was in a corporate job that sometimes RoboHelp would lose this
path. Sometimes, I even had to resort to copying the file locally
to the same folder the topic was in and ensuring there was no path
pointing to the file.
Not sure why the relative addressing failed to find it, but
this was the quick and dirty fix.