HasDocument never returns True

[sirheroics]

It seems like CEF does not like applications built with InertiaJS. Our application, even a very barebones test application seems to load fine with even the latest CEF (123.0.8) but CefBrowser::HasDocument always returns False. I've tried this on Mac and Windows builds and both display the same behavior. I should also mention that HasDocument seems to be working fine for every other website I throw at is, so long as it's not an InertiaJS application.

You can see this yourself with a sample InertiaJS application such as https://demo.inertiajs.com/login

Am I holding it wrong or is there a bug in CEF somewhere?

Thanks!