iOS urlbar shows then hides when clicking internal link

iOS urlbar shows then hides when clicking internal link

Technically this shouldnt happen, it doesnt happen sometimes on the official demos, then sometimes, it does?
Whats going on and how do i set it so it doesnt show then hide again, especially when im just clicking internal links or anchors !?

i've set the main page to autoscroll initially, so it hides the URL BAR , then when going to an internal link the URL BAR pops down, shows its loading, then hides. I've set appropriate min-height on both pages.

iphone 4/safari