Test HTML file, including Sipa for testing and debugging purpose only.
<h1>Käse</h1>
<panel-component>
    Some Content
    <b>more</b>
    test
    <div slot="header">
        PRiest
        <list-component sipa-alias="gorast" sipa-hidden="false" sipa-cache="false"></list-component>
    </div>
    Kola
    <h3>FOOTER</h3>
</panel-component>
<h2>Case</h2>
<list-component sipa-hidden="false" sipa-cache="false"></list-component>