Downloading redirect links
When downloading an MP3 from a URL that 302 redirects, Firefox Developer Edition 40.0a2 (and many previous versions) downloads the 0 byte redirect response, without requesting the URL which the 302 response indicates.
HTML
<p>From https://changelog.com/155/</p>
<ul>
<li>
<ul>
<li><a href="http://fdlyr.co/d/changelog/cdn.5by5.tv/audio/broadcasts/changelog/2015/changelog-155.mp3">with 302 redirect</a>
</li>
<li><a href="http://cdn.5by5.tv/audio/broadcasts/changelog/2015/changelog-155.mp3">Direct link</a>
</li>
</ul>
</li>
<li>
<ul>
<li><a href="http://pear.nowsprouting.com/clearviewchurch/podcast_item/17/365/20150517.mp3">with 301 redirect</a>
</li>
<li><a href="http://mediastorage.cloversites.com/clearviewchurch/media_player/20150517.mp3">Direct link</a>
</li>
</ul>
</li>
</ul>