HarmonyOS webView种植cookie问题

示例参考如下：

import web_webview from '@ohos.web.webview';
import business_error from '@ohos.base';

@Entry
@Component
struct WebComponent {
  controller: web_webview.WebviewController = new web_webview.WebviewController();
  @State cookie: string = ''
  url: string = 'xxx.cn'

  build() {
    Column() {
      Button('configCookieSync')
        .onClick(() => {
          try {
            web_webview.WebCookieManager.configCookieSync(this.url, 'value=test');
            this.cookie = web_webview.WebCookieManager.fetchCookieSync(this.url)
            console.log(this.cookie)
          } catch (error) {
            let e: business_error.BusinessError = error as business_error.BusinessError;
            console.error(`ErrorCode: ${e.code},  Message: ${e.message}`);
          }
        })
      Text(this.cookie)
      Web({ src: this.url, controller: this.controller })
        .onPageEnd(() => {
          this.cookie = web_webview.WebCookieManager.fetchCookieSync(this.url)
        })
    }
  }
}

管理Cookie及数据存储参考文档：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides-V5/web-cookie-and-data-storage-mgmt-V5#cookie管理