Recently , I developed an app based on Internet Explorer that is embeded in a third software named YY(http://www.yy.com/yy8/). It runs well on IE8-10.
But the scrollbar disappear while the version of IE is 11. At the same time, I could not scroll page by mouse or up & down key. And I tried to set body the style "-ms-overflow-style: scrollbar;" . But the problem still. Just look the following images.
The following information may help to find the problem.
1. The site runs well in "normal" IE8-edge
2. There's no scrollbar for the ie embeded in a third app when the version of IE is 11 , I tried many sites, it appears the same.
3. Other ms software runs well.
4. I did not install any new software to my pc except ie10 and ie11.
I can not post image now. an u can just look here http://answers.microsoft.com/en-us/ie/forum/ie11-windows_7/scrollbar-disappear-in-internet-explorerserver-ie/f1c21e99-9ee4-4155-bddf-c8000bcab783?tm=1463634107548