https://developers.weixin.qq.com/doc/offiaccount/OA_Web_Apps/Wechat_webpage_authorization.html

网页授权时，微信扫码后跳转没有加上code参数，二维码如下：

https://open.weixin.qq.com/connect/oauth2/authorize?response_type=code&state=123&redirect_uri=https%3a%2f%2ffirewall.szepf.cn%2funifiedtest%2f%23%2fsafetyCode%3fsign%3d2eedd56ef691fb6d1eb9d3c1e707e0f5%26telPhone%3d133%26encCode%3d43938%26userId%3d001%26envType%3d1%26expire%3d2024-08-21%252011%253A02%253A30&appid=wx29ab30838cea63c9&scope=snsapi_base#wechat_redirect

后台配置授权域名：firewall.szepf.cn

跳转页面：https://firewall.szepf.cn/unifiedtest/#/safetyCode?sign=xxx&telPhone=xx&encCode=xxx&userId=xxx&envType=xxx&expire=xxxx