如题，小程序A通过wx.openEmbeddedMiniProgram半屏方式打开小程序B，完成相应流程后需要将结果返回给A，请问B通过什么方式传递？

文档地址：https://pay.weixin.qq.com/wiki/doc/api/wxpay/ch/fusion_wallet_ch/OfficialPayMent/chapter5_4.shtml 请求参数：{"sp_appid":"wx944d223ba7xxxxxx","sp_mchid":"1605752xxx","sub_appid":"wx8502844958xxxxxx","sub_mchid":"1609778xxx","description":"交易标题","attach":"","notify_url":"xxxxxx","out_trade_no":"20220710023224000250","trade_type":"JSAPI","time_start":"2022-07-10T02:32:24+08:00","time_expire":"2022-07-10T02:37:24+08:00","merchant_category_code":"5812","payer":{"sub_openid":"ooo0a5TdyjTJZ1djE2uSb_xxxxxx"},"amount":{"total":200000,"currency":"CNY"},"scene_info":{"payer_client_ip":"127.0.0.1"},"detail":{"receipt_id":"XSCKD000036","goods_detail":[{"goods_id":"011-009-003201","goods_name":"交易商品1","quantity":1,"price":500},{"goods_id":"011-009-003201","goods_name":"交易商品2","quantity":1,"price":500}]}} 返回参数：{"code":"PARAM_ERROR","message":"$key0$参数格式错误"}

微信支付服务商退出点金计划后是否支持恢复到原有的页面跳转模式？