@JoeyO_CO 

This seems to be an issue with a recent Brave update, cant recreate it in Firefox

Guessing you are using the default local certificate?  Namely not installed your own secure cert?

@Philbert 

Thanks for the reply. I also can get past it on Firefox, but I still see the warning. 

In Firefox are you still seeing the warning on yours? 

And correct I am using the default certificate. How would I create my own? 

@JoeyO_CO 

I added the default certificate to the exceptions in Firefox so it no longer prompts, Brave wouldn't let me do that sadly. 

However if you do want to add a HTTPs certificate, you can do this via  SETTINGS  >  HTTPS Certificate.  But you would need to purchase a certificate for yourself