title: Force caching of MP3/OGG in <audio> tag
body: <p>On my website, I intend to stream background audio using the HTML5 <code>&lt;audio&gt;</code> tag. However, even after cutting down on the track length, my two files (MP3 and OGG Vorbis, for different browsers) end up at just short of 5MB a piece.</p>
  
  <p>Due to this, it would be nice to ensure loading time and bandwidth is conserved by caching the files. What I would like to know, but can't seem to find, is if it's possible to force the files to cache, or if browsers would normally cache the files at all.</p>
  
  <p>Thanks for your input!</p>