Function createServer

snowpack/src/commands/dev.ts:887–896

(responseHandler: http.RequestListener | Http2RequestListener)

    response: http2.Http2ServerResponse,
  ) => void;
  const createServer = (responseHandler: http.RequestListener | Http2RequestListener) => {
    if (credentials) {
      return http2.createSecureServer(
        {...credentials!, allowHTTP1: true},
        responseHandler as Http2RequestListener,
      );
    }

    return http.createServer(responseHandler as http.RequestListener);
  };

  let server: http.Server | http2.Http2Server | undefined;
  if (port) {