express如何获取前端axios发送的authorization

###express如何获取前端axios发送的authorization
axios发送请求时成功发送了authoriza数据，但是后端express无法获取到

###network截图

###expres对应的代码

app.use((req, res, next) => {
  // 若是用户登录，放行
  if (req.url === '/api/user/login') {
    next()
    return
  }
  const token = req.headers['authorization']?.split[' '][1]

  console.log(req.url, token, req.headers);
  if (token) {
    const payload = JWT.verify(token)
    if (payload) {
      const newToken = JWT.generate({
        userId: payload.userId,
        password: payload.password,
        loginTime: payload.loginTime
      }, '0.5h')
      res.header('Authorization', newToken)
      next()
    } else {
      res.status(401).send({
        err: "-1",
        errInfo: "token过期"
      })
    }
  }
})