The app surface a request is issued from. registration is the sign-up flow
the login home opens: it carries the login stack's device identifiers as
login-home does, but is its own surface, so a host rule that follows the
login ("The 451 build's login is on the main host") can leave the
sign-up on the scope rule instead of guessing.
The app surface a request is issued from.
registrationis the sign-up flow the login home opens: it carries the login stack's device identifiers aslogin-homedoes, but is its own surface, so a host rule that follows the login ("The 451 build's login is on the main host") can leave the sign-up on the scope rule instead of guessing.