ArcGISMapServerImageryProvider failed to load cached tilse

when i use ArcGISMapServerImageryProvider to load a tiled mapserver, it turus out the cross domain problem, can anybody tell me how to fix it, I try to use proxy : new Cesium.DefaultProxy(’/proxy/’)
but it still doesn’t work,I work in LAN .


If you have control over the ArcGIS server, enabling CORS is the recommended approach.

The proxy only works if you actually have a proxy server configured at that address. Are you using the node-based dev server that ships with Cesium, or hosting it somewhere else?