Query Portal Home Page Background Image

[mpboyle]

Is there a way to query the background image that's being used by the new ArcGIS Enterprise home page in version 10.9?

If I run a jQuery script that tries to retrieve the background-image CSS property for the div where the image is set, I get "undefined" as the return.

Is there a better way of doing this?...something that is different with the way this home page is being loaded?