I'm building an application where I'd like the user to be able to select a blank basemap from a gallery of basemap options.
I've found that if I initialize the app with a "white" "blank" or "none," I get the blank basemap I desire. Unfortunately, when I set this property it seems to "lock" the basemap into the "blank" property. When the user selects a new basemap, such as "topo" from the gallery I've created, the basemap stays blank.
On the other hand, if I initialize the app with a basemap such as "topo," the user can switch between other basemaps, but if they try to select "blank" the basemap doesn't change.
Even though it isn't listed as an option in the API, is it possible to switch between a "blank" basemap and the others?