location.href redirect page to given url instead of downloading the file on some browser

Question

On some user's browser location.href is not downloading the file instead it redirect to the given url.

HTML code

<a onclick="downloadFile("7632746786662232")" href="#">File</a>

Javascript code

function downloadFile(id){
   location.href = "file.download?clientName="+$('#clientName').text()+"&id="+id;
}

Same code is working for most of the user but it is redirect to new url for an user.