I'm trying to build a Page that includes: statelessFormA w/ Lookup and text fields, a report view, and a section containing data from an API call.

I've got statelessFormA and the report in place and the report is updating based on my inputs in the stateless form, all good. I can also get my API data to display within a Notes field inside of statelessFormA. But to get the layout I want I need to break out the API data into its own section. In theory I thought I could create a statelessB w/ just a Notes field, pass the Notes field input from statelessFormA to statelessB via an openUrl that points to the designated iframe in my page (just as I've done w/ the report). The statelessB DOES show up in the correct iframe and seems to refresh w/ my actions in statelessFormA, but i'm just getting "null" as a response. Not sure if I'm explaining this well, but any ideas would be appreciated. Also, is there just a better way to do this, like passing the API call directly into an html snippet? I don't really know any html but kind of piecing things together through researching forum posts, etc.