HarmonyOS Web组件是否支持Proxy代理设置？

let exclusionStr = "192.168,huawei.com"; 
let exclusionArray = exclusionStr.split(','); 
//设置网络应用级Http代理配置信息 
connection.setAppHttpProxy({ 
  host: "172.16.40.131", 
  port: 9999, 
  exclusionList: exclusionArray 
} as connection.HttpProxy); 
 
//webview加载页面，看是否通过代理请求 
this.controller.loadUrl('https://www.huawei.com');