Deactivate Bing Maps in Cesium

How can I deactivate the usage of Bing completely?

I have created a new access token with the rights to read assets (Cesium World Terrain only) and use the geocoder.

But when I use this new key, I get an 404 error for the resource[TOKEN]

As well as in my application and when I try to open this URL with the token.

I guess, Bing is still used, although the ImageryProvider contains only two WMS in a BaseLayerPicker array. Do I need to clear the ImageryProvider in some way?

Make sure you’re adding your imagery provider in the Viewer constructor, otherwise it will still initialize with the default Bing imagery. There’s a code snippet here under “Opt out of Bing”: