HarmonyOS 鸿蒙Next：web无法打开在线页面 get address info failed, out_os_error is -11 host

如题，web打开在线页面总是白屏，真机测试，报错get address info failed, out_os_error is: -11 host: www.baidu.com
import web_webview from ‘@ohos.web.webview’;
@Entry
@Component
struct Details {
 
  webviewController: web_webview.WebviewController = new web_webview.WebviewController();
  @State mode: OverScrollMode = OverScrollMode.ALWAYS;
  build() {

    Column() {
      Web(

        { src: ‘http://www.baidu.com’, controller: this.webviewController,renderMode: RenderMode.SYNC_RENDER}
      ).fileAccess(true)
        .javaScriptAccess(true)
        .domStorageAccess(true)
        .layoutMode(WebLayoutMode.FIT_CONTENT) 
        .overScrollMode(this.mode)
    }
  }
}