text: const DELAY = 5000;
  
  export function loadImageSync() {
    const request = new XMLHttpRequest();
    request.open('GET', '/assets/big_image_10mb.jpg', false);  // `false` makes the request synchronous
    request.send(null);
  
    if (request.status === 200) {
      return request.responseURL;
    }
  }