What a screen's enter receives: the edge's input, and navigate, the
screen's own navigation event — NavigateTo for a screen, SwitchTab for a
tab, SwitchTopTab for an inner tab — with the source and ordinal skip of
the edge that led here. The screen yields it exactly once, at the point of
its burst the recording shows (in 451 the first UserDetail requests still
carry the SERP); a second yield fails with ScreenEnterNavigationError, and
so does an enter that never yields it. The screen itself never sees the
source.
What a screen's
enterreceives: the edge's input, andnavigate, the screen's own navigation event —NavigateTofor a screen,SwitchTabfor a tab,SwitchTopTabfor an inner tab — with the source and ordinal skip of the edge that led here. The screen yields it exactly once, at the point of its burst the recording shows (in 451 the firstUserDetailrequests still carry the SERP); a second yield fails withScreenEnterNavigationError, and so does an enter that never yields it. The screen itself never sees the source.