They don't spell it out here, but I wonder if this means that third-party embedded web software requires the Storage Access API now. It's not particularly fun

They don't spell it out here, but I wonder if this means that third-party embedded web software requires the Storage Access API now. It's not particularly fun to implement. It's not hard, but the heuristics are enough of a nudge that it can create weird experiences for users. "I thought I already signed in, but after I navigate, I have to click sign in again, and a window pops up and then I'm automatically signed in? Why?" Edit: Yeah, seems so. https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Privacy/State_Partitioning https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Pri... See also: https://webkit.org/blog/8124/introducing-storage-access-api/ https://webkit.org/blog/8124/introducing-storage-access-api/