removeBlobs = async opt => {
  const { page } = opt;
  return page.evaluate(() => {
    const stylesheets = Array.from(
      document.querySelectorAll("link[rel=stylesheet]")
    );
    stylesheets.forEach(link => {
      if (link.href && link.href.startsWith("blob:")) {
        link.parentNode && link.parentNode.removeChild(link);
      }
    });
  });
}
@param {{page: Page}} opt
@return Promise