Getting some uniformity of process around web extension points would be helpful. You've done a lot to simplify submission, why not for schemes. I don't think it's necessary to remove old provisional schemes, but it should be possible for someone else to claim use . The thing that we wanted to avoid was scheme-squatting, and fighting over who gets to use pizza: or food: or amazon: This is a risk in RegisterProtocolHandler That kind of judgement was part of the reaction to the drop scheme. Such a common word, 'drop' but he couldn't change it because he was already using the word in dropnumber.com. I don't know how to solve this problem; there are too many constraints. I blame RegisterProtocolHandler because before it was really hard to deploy a new scheme, so it wouldn't matter who owned pizza:
