Hi,
I just found that if you open a page in the ckeditor in IE 11, scroll down a bit and copy a piece of text from a table cell the editor will jump back to the top of the page. That is regardless if you copy with ctrl+c or right click menu.
As there is a lot of custom stuff (policies, configuration) involved outside of xwiki I’d like to ask for your help, if you can confirm this behaviour, before I create a bug.
I’m using xwiki 10.6.1.
Edit1: It looks like this only works if your selection contains the last word of the cell.
Edit2: Just confirmed the behaviour also on https://sdk.ckeditor.com/samples/htmlformatting.html, so I guess it’s not an xwiki thing. But confirmation from others would still be very welcome!