Please add preference to config <authentication hostsToAuthenticate="*.domain1.com;*.domain2.com" /> on all Analyst clients.
One of our customers needs this to load images from http url with authentication enabled and show the images as labels in scatter plot etc.
Currently above configuration can only be specified in the Spotfire.Dxp.Main.dll.config file on each Analyst client which is quite a workload and error prone.