Does anyone have an example of a live site running rich media recommendation? All I can find are screen shots.
You code looks correct, have you enabled content for Predictive Content, Marketo has a 2 step process of getting content into Predictive Content, first you have to approve (Approve a Title for Predictive Content - Marketo Docs - Product Documentation), then you have to enable (Edit Predictive Content for Rich Media - Marketo Docs - Product Documentation).
I looked at the network tab and see the following:
Your getting a 302 on the rtp js file, I think without this, that's why its not loading, that's noting you did wrong from what I can see, here's the example file that's on marketo.com which loads there RTP:
I think you're best raising a ticket with support.
Please note I compare all the code you have with my working version and all your code matches my working version (sorry I can't share as mine is hidden behind a segment).