Puppeteer 验证页面内的图片是否加载成功

const imgs = Array.from(document.querySelectorAll('.show-content img'))
await Promise.all(imgs.filter(img => !img.complete).map(img => {
  return new Promise((resolve, reject) => {
    img.addEventListener('load', resolve);
    img.addEventListener('error', resolve); // 也算成功吧
  });
}))