Simple things like
<a href="page.html" onclick="somefunc(); return false;">
// doesn't work
The easiest options, in terms of amount of work required to address this issue would be:
Of course, this is a lot more work on your part because it almost requires writing 2 versions of the site. This is an argument that is brought up all the time online, even when developing StackOverflow, as was discussed on their blog.
You're better off telling them to add an exception for your site.