Hey everyone, running into a wall with the Genesys Cloud Web Messaging SDK in a Next.js project. I’m trying to embed the messenger widget using the standard JavaScript snippet, but the browser console is screaming about CORS issues when the widget tries to fetch the deployment config. It’s throwing a 403 Forbidden on the /api/v2/webchat/deployments/{deploymentId}/config endpoint.
Here’s the setup. I’ve got a standard Next.js 14 app using the App Router. I’m rendering the widget in a client component ('use client') like this:
'use client'
import { useEffect } from 'react';
export default function MessengerWidget() {
useEffect(() => {
window.genesyscloud = window.genesyscloud || [];
window.genesyscloud.push({
'deploymentId': '12345678-1234-1234-1234-123456789012',
'domain': 'mypurecloud.ie',
'environment': 'production'
});
const script = document.createElement('script');
script.src = 'https://mypurecloud.ie/js/sdk/latest/webchat-sdk.js';
script.async = true;
document.head.appendChild(script);
}, []);
return <div id="genesyscloud-messenger"></div>;
}
The weird part is, if I paste the deployment ID directly into Postman with the right auth headers, I get a 200 OK and the JSON config back. But from the browser, it fails hard. I suspect it’s because the Next.js server-side rendering or the way the script is injected is messing with the origin headers, or maybe the Genesys endpoint is rejecting the request because it looks like it’s coming from a server-side context initially.
I’ve tried adding Access-Control-Allow-Origin: * to my Next.js next.config.js rewrites, but that doesn’t seem to help since the request is going out to Genesys, not my server. Has anyone successfully embedded this in a Next.js app without hitting CORS walls? I’m thinking I might need to proxy the request through my own API route, but that feels like a hack. What’s the clean way to handle this?