When there are multiple Window components initialized in one page the initially defined z-index is not changing when tapping on a given Window on an iPad device in the Safari browser.
Possible fix
Replace:wrapper.add(wrapper.children('.k-resize-handle,' + KWINDOWTITLEBAR)).on('mousedown' + NS, proxy(that.toFront, that));
With
wrapper.add(wrapper.children('.k-resize-handle,' + KWINDOWTITLEBAR)).on('mousedown' + NS, proxy(that.toFront, that)).on('touchstart' + NS, proxy(that.toFront, that));
The second Window continues to stay under window number 3
Once a given Window is tapped its should pop to the top and its content shouldn't be hidden by other Windows.