As documented at https://docs.adobe.com/content/help/en/target/using/implement-target/client-side/upgrading-from-atjs... ,
The following at.js 1.x parameters are NOT currently supported for audience creation when using at.js 2. x :
- browserHeight
- browserWidth
- browserTimeOffset
- screenHeight
- screenWidth
- screenOrientation
- colorDepth
- devicePixelRatio
It would be great if something similar could be made available in at.js 2.x to have access to for sites using Responsive Web Design to enable targeting.