如果文件名包含特殊字符，则无法下载文件

const fileName = "example[1].txt";
const encodedFileName = encodeURIComponent(fileName);
const fileUrl = "https://example.com/files/" + encodedFileName;

<a href="https://example.com/files/example[1].txt" download="example[1].txt">Download</a>

const fileName = "example[1].txt";
const sanitizedFileName = fileName.replace(/[{}$$$$]/g, '_');
const fileUrl = "https://example.com/files/" + sanitizedFileName;

fetch("https://example.com/files/example[1].txt")
  .then(response => response.blob())
  .then(blob => {
    const url = URL.createObjectURL(blob);
    const a = document.createElement("a");
    a.href = url;
    a.download = "example[1].txt";
    a.click();
    URL.revokeObjectURL(url);
  });