Use of 'Content-Type: force-download' breaks downloading on Android

I have a View which offers (private) File Entity PDF files for download via the "Download link" formatter.

In Android (at least the stock browser and Chrome on Android 4.2.2), the file downloads to the Downloads folder, but the browser cannot open the file - you get the message Cannot open file. You have to exit the browser and browse to the Downloads folder, which is a pain.

It turns out that when using the Download Link, File Entity delivers the files with the HTTP header Content-Type: force-download.

After Googling I found this:
http://www.digiblog.de/2011/04/android-and-the-download-file-headers/

If you use any of the lines below your download will probably NOT WORK on Android 2.1.

Content-Type: application/force-download
Content-Disposition: attachment; filename=MyFileName.ZIP
Content-Disposition: attachment; filename="MyFileName.zip"

And the solution
To make it work in Android’s stock browser and in Dolphin browser you have to use:

Content-Type: application/octet-stream
Content-Disposition: attachment; filename="MyFileName.ZIP"

So it looks like 'force-download' is a hack too far, and 'application/octet-stream' should be preferred.