3 ms·

We already have this with (iirc) postMessage API.

• lxgr 2y ago
  That API is exactly one of the reasons Safari still runs some distinct origin sites in the same process together. Performantly implementing that API across processes is possible, but not quite trivial.
  • brucehoult 2y ago
    popup-based authentication does not actually need high performance.
    • lxgr 2y ago
      It's not used only for authentication, and figuring out what a website is trying to do heuristically doesn't sound easy either (although I believe Chrome on Android does just that, and enforces a site-locked process when they deem it important for security reasons).