<!DOCTYPE html>
<html>
<head>
<title>Viewer Page</title>
</head>
<body style="font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;">
<div id="app" class="full-height"></div>
<script src="https://extension-files.twitch.tv/helper/v1/twitch-ext.min.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"
integrity="sha256-FgpCb/KJQlLNfOu91ta32o/NMZxltwRo8QtmkMRdAu8="
crossorigin="anonymous"></script>
<script src="viewer.js" type="text/javascript"></script>
<script src="imageSwap.js"></script>
<div>
<a id = "url" target="_blank" href="https://store.teamliquid.com/collections/all/products/team-liquid-2019-jersey?variant=18610731548729">
<img id = "img" alt= "TL Rotating Ads" src = "TL_Sample_Ads/Jersey-b.png"/>
</a>
</div>
</body>
</html>
This all is what panel.html is. I do have that script you mentioned.