字节跳动的微信支付，成功扣款，点击完成之后返回的code=9

在开发字节跳动小程序支付时，使用的是微信支付，能够拉起微信支付进行支付，成功扣款，但是点击返回之后code =9；具体代码如下：

uni.requestPayment({  
   provider: 'wxpay',  
   orderInfo: orderinfo,  
   service: 3,  
   success(se) {  
     console.log(se)   //se.code = 9  
}  
}）  

orderInfo={  
     alipay_url: ""  
    app_id: "800594486315"  
    body: "配音会员充值"  
    currency: "CNY"  
   merchant_id: "1900059448"  
  notify_url: "https://douge.club/peiyin/anonymous/dyOrder/callBack"  
  out_order_no: "1626518859Ls3SjsKWCL7YSz76XILBgM"  
  payment_type: "direct"  
  product_code: "pay"  
  risk_info: "{"ip":"58.62.93.126", "device_id":"122333"}"  
  sign: "8fc15df2371c653f8161e6d3d70b9622"  
  sign_type: "MD5"  
  subject: "配音充值"  
  timestamp: "1626518860"  
  total_amount: "2900"  
  trade_time: "1626518860"  
  trade_type: "H5"  
  uid: "BdzHgZr2HKxUTBA9"  
  valid_time: "3600"  
  version: "2.0"  
  wx_type: "MWEB"  
  wx_url: "https://wx.tenpay.com/cgi-bin/mmpayweb-bin/checkmweb?   
  prepay_id=wx1718474000088940ddd86f2bfda4b10000&package=891391297"  
}