The easiest way: open the download window on the page without leaving the page

Question

What is the best way to open a download dialog in various browsers without leaving the current page or opening a popup (assuming we can set content-disposition:attachment in the header) Problems will occur in Internet Explorer (IE) 6.

Answer 1

This javascript is fine, it doesn't open a new window or tab.

window.location.assign(url);

Answer 2

It's been 7 years and I don't know if it works in IE6, but it pops up the OpenFileDialog in FF and Chrome.

var file_path = 'host/path/file.ext';
var a = document.createElement('A');
a.href = file_path;
a.download = file_path.substr(file_path.lastIndexOf('/') + 1);
document.body.appendChild(a);
a.click();
document.body.removeChild(a);