<?xml version="1.0" encoding="utf-8"?>

<!--
  Description: Must contain a legal URI
  Expect:      InvalidLink{attr:application,element:extension,parent:playlist}
-->

<playlist version="1" xmlns="http://xspf.org/ns/0/">

  <extension application="This should be a URI" />

  <trackList>
  </trackList>

</playlist>