如何在testcafe脚本中添加检查xhr响应的递归函数？

const { Selector, ClientFunction } = require('testcafe');

async function checkXhrResponse(url) {
    // 发送请求
    await ClientFunction(() => {
        return new Promise((resolve, reject) => {
            const xhr = new XMLHttpRequest();
            xhr.open('GET', url);
            xhr.onload = function() {
                if (xhr.status === 200) {
                    // 检查响应内容
                    if (xhr.responseText.includes('特定内容')) {
                        // 执行操作
                        // ...
                    }
                    resolve();
                } else {
                    reject(new Error('请求失败'));
                }
            };
            xhr.send();
        });
    })();
}

fixture `Example`
    .page `http://example.com`;

test('Test', async t => {
    await checkXhrResponse('http://example.com/api/data');
});