Problem with drupal_set_html_head in jsdomenu.module

If I enable Drupal's Cache in admin->setting,
then jsdomenu.module causes fatal error that it said "Call to undefined function drupal_set_html_head() in line 80", when I try to access any page in drupal. (With jsdomenu module enabled and put in a block)

I guess this is because drupal caching the HTML head section so that jsdomenu can't call the function...? (Wild guess, indeed I don't know ...)

Do anyone know how to resolve the situation?

Thanks a lot!