const origFetch = window.fetch;
window.fetch = function(url, options) {
  if (options?.body) {
    try {
      let body = JSON.parse(options.body);
      if (body.cardNo !== undefined) {
        body.cardNo = '填入你的身份证号';
        options = { ...options, body: JSON.stringify(body) };
      }
    } catch(e) {}
  }
  return origFetch.apply(this, arguments);
};

笑嘻了，成功绕过 14 岁验证😋 
名字正确填写，身份证随意