Web组件缓存中有数据，但是想用网络的最新数据怎么办？

webviewController: web_webview.WebviewController = new web_webview.WebviewController();
Button('removeCache')
  .onClick(() => {
    try {
设置为true时同时清除rom和ram中的缓存，设置为false时只清除ram中的缓存
      this.webviewController.removeCache(true);
    } catch (error) {
      let e: business_error.BusinessError = error as business_error.BusinessError;
      console.error(`ErrorCode: ${e.code},  Message: ${e.message}`);
    }
  })
Web({ src: 'www.example.com', controller: this.webviewController })
  .cacheMode(CacheMode.None)
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