have_consent() on alias domain

Hi there,

I have this domain linked to a single page sat on another wordpress installation (https://oaklandconsulting.com) using an alias domain.

When I hit this page, I can accept cookies and the bar disappiers. However the have_consent() function returns false on this domain only.

The plugin works fine on the domain of the actual site where the backend and everything else sits.

Can you think of anyway around this apart from literally taking this page into is own wordpress install? I want to avoid this if possible because it will double all future work on plugins etc!

Thanks

The page I need help with: [log in to see the link]