I've noticed that background images in chrome are not displayed in CKEditor 4.1 if you enter them as absolute paths:
<div style="background-image: url('/images/test.jpg') => won't display on Chrome
<div style="background-image: url('http:www.myserver.com/images/test.jpg') will display on Chrome.
It works on Firefox and Safari
AND: It also works on Chrome using CKEditor 3.x...
Any suggestions? Already tried the "baseHref", no success.