Okay the dilemn of opening URL is security.
Let's say addon author X add this and creates a fake website, "log in with your ESO account" User does and -> password stolen
So :
OpenURLByType () -> public
New ApprovedURLType : APPROVED_URL_ESO_OUTSIDE
A nice webpage on one of your servers, when using :
Lua Code:
ApprovedURLType(APPROVED_URL_ESO_OUTSIDE, "www.google.com")
it will display a nice webpage like this :