贝宝错误处理。找不到message postrobot\u方法的post message ack的处理程序

我对使用贝宝有一个误解 react bindings 签出组件的。

我的付款功能:

  let payment = () => {

        return new paypal.Promise(async (resolve, reject) => {
            await appStore.payment.paypalCreatePayments();

            if (!appStore.payment.paymentsError && appStore.payment.paypalToken.payment.id) {
                resolve(appStore.payment.paypalToken.payment.id);
            } else {
                reject(appStore.payment.paymentsError);
                alert('Payment failure! error:', appStore.payment.paymentsError);
            }
        });
    };

和按钮组件:

        PayPalButton = paypal.Button.driver('react', { React, ReactDOM });
        <PayPalButton
            client={client}
            payment={payment}
            commit={true}
            env='sandbox'
            onAuthorize={onAuthorize}
            onCancel={onCancel}
            onError={onError}
        />;

onAuthorize函数:

onAuthorize = async (data, actions) => {
    await appStore.payment.paypalExecutePayments({
        paymentID: data.paymentID,
        payerID: data.payerID,
        keys: appStore.payment.paypalToken.keys
    });

    actions.close();

    if (!appStore.payment.paymentsError) {
        this.props.paymentSuccess();
    } else {
        this.props.paymentFailure(appStore.payment.paymentsError);
    }
};

当一切顺利时,它工作得很好。但当我从服务器端(例如404或500)收到错误时,Paypal会抛出以下错误消息:

Uncaught Error: No handler found for post message ack for message: postrobot_method from https://1b375a11.ngrok.io in https://www.sandbox.paypal.com/webapps/hermes/button

你知道如何处理这个错误吗?