Open links in "_parent" mode with masked URLS

I have a WP site, users go to it via a masked domain

So https://blackknightsatellitemovie.com/
forwards to
https://www.clickfriends.mobi/black-knight-satellite/

Now it works great. But on the Wp site when user clicks on LOGIN it just takes us to a blank screen.

BUT when we go to the WP site using the direct URL the login works.

So its something to do with masked URL being used.

I think the solution is to make all links open using “_parent” setting and not “_self” as using masked URLS make use of frames and the LOGIN URL is somehow parsing to use the masked URL not the actual URL. Correct me if Im wrong.

So (apart from not using masked URLS) what is the solution? Can I somehow make all links in the META panel open using “_parent” flag?