Let’s say I would like to embed this website in an iframe. Then my console would show me that this website is blocked by CORS policy.

If I add for example X-Frame-Bypass, the problem is still there as you can see here:

<script src="https://unpkg.com/@ungap/custom-elements-builtin"></script>
<script type="module" src="https://unpkg.com/x-frame-bypass"></script>
<iframe is="x-frame-bypass" src="https://www.uni-weimar.de/de/universitaet/aktuell/ukraine-hilfe-der-universitaet/" width="500" height="400"></iframe>

Strangely enough, it works perfectly here.

What do I need to do to embed an iframe of this website on any website? I would be very thankful for help!