Ive got an anchor link 

<a href="http://bucket_name.amazonaws.com/uploads/users/4/songs/7/test.mp3">Download</a>

How do I make it so when a user clicks on it, it actually opens a popup asking the user to save the file instead of trying to play the file on the browser?

EDIT:

I was reading this article. 

  def download
    data = open(Song.first.attachment)
    send_data data.read, :type => data.content_type, :x_sendfile=>true
  end

The article suggest using x_sendfile, since send_file takes up an http process with the potential risk of hanging the app until the download is completed.

Second, I am using send_data instead of send_file, which seems to work if the file is remote (i.e. hosted on Amazon S3). As suggested by this article.

The article, I mentioned was posted on 2009. Is x_sendfile=>true still necessary? Will it hang the app if it isn't included?

Should I really be using send_data or send_file?

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