Is there a way to determine where an API call originated on the browser side, without a Parent GUID?

Matthew Sinn

I'm investigating an increase in calls to APIs which don't have a Parent GUID in Tremor. I learned recently that the Parent GUIDs in Tremor are automatically generated and placed in the request header by the infrastructure, and not by the applications. If a transaction in Tremor doesn't have a Parent GUID associated with it, that means it didn't originate from an application side call, but instead a browser side call. Is there a way to determine the browser-side source for an API call? Is my understanding of the Parent GUID generation process incorrect? Thanks in advance...