安全地在浏览器中下载具有正确文件名的文件

Content-Disposition: attachment; filename="example.txt"

Content-Type: text/plain

const link = document.createElement('a');
link.href = 'https://example.com/file';
link.download = 'example.txt';
link.click();

const xhr = new XMLHttpRequest();
xhr.open('GET', 'https://example.com/file');
xhr.responseType = 'blob';
xhr.onload = function() {
  const url = window.URL.createObjectURL(xhr.response);
  const link = document.createElement('a');
  link.href = url;
  link.download = 'example.txt';
  link.click();
};
xhr.send();