WMS Proxy when using Apache

I’m trying to get WMS data from other api service.

Browser return CORS error.

Because WMS url is different with cesium viewer url.

I found there are proxy setting in WMS new Cesium.DefaultProxy('/proxy/')

but it’s working only nodejs server environment.

I’m using Apache 2.4 server to run cesium.

It there any tips or help to set WMS proxy for Apache server???

Sorry for my poor english