Add `replaceHost`

/**

 * Replaces the host of the request with the value of the

 * x-forwarded-host header, if present.

 * If don't use proxy or tunnel, this wrapper is unnecessary.

 * @param handler The request handler to wrap.

 * @return A new request handler with the host replaced.

 */

export function replaceHost(handler: (request: Request) => unknown) {

  return (request: Request) => {

    const forwardedHost = request.headers.get("x-forwarded-host");

    if (!forwardedHost) return handler(request);

    const headers = new Headers(request.headers);

    headers.append("host", forwardedHost);

    const url = new URL(request.url);

    url.host = forwardedHost;

    url.port = "";

    return handler(new Request(url, { ...request, headers }));

  };

}

import { fedifyWith } from "@fedify/next";

import federation from "@/federation";

import { replaceHost } from "./lib/utils";

export default fedifyWith(federation)(

export default replaceHost(

  fedifyWith(federation)(

    /*

      function(request: Request){

        // Add any additional middleware here

        return NextResponse.next()

      }

    */

  ),

);

// This config makes middleware process only requests with the