Adobe Indesign CC 2023 (18.1)

I recently wanted to create a more immersive viewing experience of my 3D designs by inserting holographic image blocks as an embed in a PublishOnline document (if you haven't seen this excellent technology you should check out "LookingGlass" https://blocks.glass/).

While testing this out I've run into a problem with the publishing of the document. Using the "Object/Insert HTML" and pasting the Image Block's embed code:

<div class="lkg-blocks-player" style="padding:133.333% 0 0 0;position:relative;"><iframe src="https://blocks.glass/embed/3450" frameborder="0" style="position:absolute;top:0;left:0;width:100%;height:100%;" allow="autoplay; encrypted-media; xr-spatial-tracking; accelerometer; gyroscope; magnetometer" allowfullscreen mozallowfullscreen="true" webkitallowfullscreen="true" execution-while-out-of-viewport="true" execution-while-not-rendered="true"></iframe></div>

everything works great while in Indesign (screenshot of the EPUB preview), but after publishing the image blocks turn grey while giving the error message: "The content is blocked. Contact the site owner to fix the issue". I also tried exporting it as an interactive PDF which didn't work either.

Link to PublishOnline document:
https://indd.adobe.com/view/770bd54d-1c3f-44c0-be93-4c957afd59bf

After inspecting the publication it seems that Adobe only supports a handful of URLs for embeds on published sites (see screenshot), and image blocks might not be one of them.

Still, I would love to see this problem fixed, both for Publishing Online as well as interactive PDF if possible, as it all seems to be working perfectly fine in the preview window before publishing.