Steps to Reproduce

1. load the attached zul with chrome device emulation *iPad mini*
2. scroll the listbox horizontally or vertically

Current Result

we can't scroll the listbox horizontally and vertically

Expected Result

Debug Info

• the browser just scroll the window's content instead of the listbox.

Root Cause

• a simulated scrollbar created by iscroll

  <div id="z_1-cave2" style="transition-property: transform; transform-origin: 0px 0px 0px; transform: translate(-2px, 0px) scale(1) translateZ(0px); height: 634px; width: 758px;">
  

Workaround

• remove overflow:auto
• disable iscroll (since 8.5.0)