which pop-up do we have to use ?

by default, it's simplier to use solid auth login popup let popupUri = 'https://solid.community/common/popup.html';
but when i use       let popupUri = './dist-popup/popup.html'; with a copy of what i find in the repo, the popup ask the user which level he grant the app (trusted apps).
Why doesn't this grant level question be automatic ?