Embedded discourse topic names

I’ve just set up embedded comments in our discourse forum from a website (amazing!). All is working except that the topics which are being created all have the name “undefined”

How is that name generated, and how do I set it up?

My guess is that it has to do with this setting, but everything I’ve tried hasn’t worked:

Thanks for any advice!

This post:


Answered my question for me. The name is pulled automatically from the html tag which my page was missing. Easily fixed.