iOS 7 Safari: OS locks up for 4 seconds when clicking/focusing on a HTML input

Question

UPDATE: The issue seems to stem from having many select elements on a page. How random is that?

So here\'s the issue. On iOS 7 Safari, when tapping

Answer 1

Met the same problem in quite complex application having many inputs.

Attached debugger to Safari iOS7 via USB and logged UI events. I see "touchend" event coming as soon as I am clicking on textarea (or any input) and in 10-20 seconds after that I see "click" being dispatched.

Clearly it is a bug in Safary as on other devices like Android or iOS6 there is no problem with the very same application.