lib: make fetch sync and return a Promise
I haven't tracked down exactly where the webidl spec says this, but every other platform I've tested matches this behavior. This has been nagging at me for a while
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
I haven't tracked down exactly where the webidl spec says this, but every other platform I've tested matches this behavior. This has been nagging at me for a while