This page contains an "intrinsec event" and defines a function. It also loads an external script using the <script> tag.
This would be enough to consider it nontrivial. But it contains a free license notice between @licstart and @licend, so it is free.
The free code that is inline is executed, but the external file is blocked.
Code in this page:
Code in external file external.js
var xmlhttp = new XMLHttpRequest(); xmlhttp.open("GET","somepage.xml",true); xmlhttp.send(null);