二级商户调用app下单接口后，生成预支付id成功，APP也能唤起微信支付模块，但是点击支付后一直停留在支付页面 [图片][图片] 前端参数： { "appId": "wx14868e8b72812696", "partnerId": "1600715235", "prepayId": "wx02192549934957d0ca31ee051363512200", "nonceStr": "1925502200029428", "timeStamp": "1593689150", "package": "Sign=WXPay", "sign": "Gwv6lvaa7SgrM3arQtoCq4Et/rAmRHVE1vHNAo0mi6FW+IlHD0pyBuY4qlu9/NxryWr/POr3uS2HLiUYm/SpdreHXdH63IK/yWFOaYHm+2fi5SOEzVq4eY1jyEu5SbJh4c0OBxsnsmKMYbTc/bUbupzuIgr3hu8Yx3tl6kveYKR1qeRmecRTFAwOC1saV5+31wsruneE9uFRIqQtT31QeIzd8Fyv/8tg8SGWvnkTIqpOrv/L8Hj7CIjCBOBybwbE/R6L0/bnAksOEptsDh3GT2qPykSwceBk8WEAG+n9THevQ/xC2QHXbVMKvj1Q7nRfsdhcGN8eKFfb1i6VdhfJqA==" }

图片上传接口 https://api.mch.weixin.qq.com/v3/merchant/media/upload 接口报错： {"code":"PARAM_ERROR","detail":{"location":"fil","value":""},"message":"输入源[图片]“/file”映射到字段“图片文件”必填性规则校验失败，此字段为必填项"}