Embed a worker into webpage?

I have a worker that is a basic webpage (working fine) and would like to embed another worker that is an MP3 player (and also working fine) into it, but I am unable to get it to work.

It works fine in the wrangler preview, but once online it fails.

Can anyone shine some light on if this will be able to work?

I’ve tried iframe and embed but it wont work :man_shrugging:

This seems more like an issue with the actual HTML/CSS/JS part, more than Cloudflare itself. Can you at least share the domain?