Cloudflare Worker for mirroring incoming requests to external server

mirror-worker.js

addEventListener("fetch", (event) => {
	event.respondWith(
		handleRequest(event.request).catch(
			(err) => new Response(err.stack, {
				status: 500
			})
		)
	);
});

// handleRequest mirrors the incoming request to an external server, and returns the usual response
// that your web application supposed to return.
async function handleRequest(request) {
	// Parse the url of incoming request, to mirror the same request to your strixeye agent.
	const url = new URL(request.url);

	// modify host headers
	url.hostname = TARGET_HOST;
	url.host = TARGET_HOST;

	// create new request and send it to strixeye agent
	mirrorRequest = new Request(url, {
		body: request.body,
		headers: request.headers,
		method: request.method,
		redirect: request.redirect
	})
	mirrorRequest.headers.append("CUSTOM-HEADER", CUSTOM_HEADER_VALUE)
	fetch(mirrorRequest)

	return fetch(request);
}