在$AWS\u LAMBDA\u站点从源站获取http://localhost:3000'已被CORS策略阻止

我使用ExpressJs和ClaudiaJs向AWS Lambda发布了一个web服务器。此服务器的任务是处理条带支付。我试图让我的React SPA提交客户的条带签出,但在我尝试提交时收到CORS错误。

我怎样才能避免这个CORS错误?我可以想象我需要在同一TLD上发布客户机和AWS服务器(不确定如何使其工作),或者需要在服务器上禁用CORS(但这似乎不安全)。

条带服务器调用:

    this.handler = StripeCheckout.configure({
        key: test_key,
        locale: "auto",
        mode: "no-cors",
        name: "Company 1234",
        description: "donation",
        token: token => {
            // Send the donation to your server
            console.log("server pinged");

            fetch(`${backendUrl}/charge`, {
                method: "POST",
                headers: {
                    "Content-Type": "application/json"
                },
                body: JSON.stringify({
                    stripeToken: token,
                    chargeAmount: this.state.donationAmount
                })
            })
                .then(res => res.json())
                .then(json => {
                    console.log("response is " + json);
                    this.setState({ donationResponse: "Thank you for donating!" });
                })
                .catch(error => {
                    this.setState({
                        donationResponse:
                            "There was an issue processing your request. Please try again later"
                    });
                });
        }
    });

formSubmit = async event => {
    console.log("form submitted");
    event.preventDefault();

    const amount = this.state.donationAmount * 100; // Needs to be an integer in cents
    this.handler.open({
        amount: Math.round(amount)
    });
};