In my project, I need to get images via ipx, and if there is no such image, I would love to get some placeholder that I would have specified in options. So, is there any way to add such a thing, so the initialization would look like

import { createIPX, createIPXMiddleware } from "ipx";

const ipx = createIPX({
  /* other options */
  fallbackUrl: '/path/to/the/image.png'
});
const app = express();
app.use("/image", createIPXMiddleware(ipx));

Or is there already a way I could handle such 404 errors myself?