Issues with loading wms from geoserver

I’m getting issues while loading wms from geo server to cesium map.Actually wms getting loaded correctly but the whole globe turned white.But in open layers it loaded correctly what could be the reason.

I’m able to remove the white layer by setting alpha and brightness.but how can i remove permanently.

Can you create a Sandcastle example that demonstrates the problem? Is the WMS publicly accessible? If not, can you share the capabilities document? What version of Cesium are you using? What browser? Any messages in the console?

Help us help you.