Picture img Insertion helpful outside IE

From my experience using lozad so far I've needed to remove the isIE check when lazy loading pictures as chrome expects me to style the picture based off of a fallback img tag as opposed to styling the picture tag. Are others experiencing this / would it make sense to remove the isIE check before fallback img insertion? I made the change in my fork and also used hasAttribute in the attribute checks.

https://github.com/TiKevin83/lozad.js/commit/85044c802e39b9a7bed80004d791dfab778ef1eb