Cloudflare Apps not working with Medium through Cloudflare

Hi there!

I’ve tried to install several apps on my site:
But it seems like none of them show up (I installed Drift and Fortify). Drift shows up in the preview.
When I look at the code and console I can see that Cloudflare is loaded, but no code for the apps mentioned.
The site is hosted via Medium, do they have any kind of blocking? Or is there something I have overlooked in my settings?