Very suspect redirect to www6.getkickstrap.com

[hugoskwirrel]

I noticed this script in one of our website:
<script id="appList" src="//netdna.getkickstrap.com/1.3/Kickstrap/js/kickstrap.min.js"></script>

Script content:

var x = 'http://' + document.currentScript.src.split("/")[2];

if (top.location != location) {
    top.location.href = x;
} else {
    window.location = x;
}

What the hell is it? It keeps redirecting to www6.getkickstrap.com