I stumbled upon this discussion
and now I’m wondering if the problem with the RadioPublic player is similar? Can you do the same thing for RadioPublic, @nbianca ?
Edit: It works, but not in the post preview. Only when I publish the post, the player appears.
Edit 2: After further research, it turns out that Stitcher links also don’t work, even though they do on iframely.
https://www.stitcher.com/podcast/the-moth-podcast/e/60781184?autoplay=true
Soundcloud links also don’t show the player in post preview.