On iOS devices, new page loads at previous page position
When I click a link that is well down the page, the new page does not load at the top of the page, but rather at the previous page position. For example, if I scroll 1000 pixels down a page and then select a link, the new page loads already scrolled 1000 pixels down the page rather than at the top of the page. Also, page scrolling is now choppy instead of smooth, but this is a lesser issue.
It looks like someone replaced the iOS code with the Android code, because I used to see these two issues whenever I ran an Android prototype on an iOS device.