After enabling CDN option all images are replaced by CDN's host name
Without enabling CDN option
<img src="/wp-content/uploads/2013/12/sliderhome_MASTER_1080px.jpg" height="265" width="1080" class="slider-442 slide-617" draggable="false">
After enabling CDN Option
<img src="content.mydomain.com/" height="265" width="1080" class="slider-442 slide-617" draggable="false">