* Explainer: https://github.com/WICG/origin-isolation * Spec PR: https://github.com/whatwg/html/pull/5545 * Tests: https://github.com/web-platform-tests/wpt/tree/master/origin-isolation * Spec entrypoint: https://html.spec.whatwg.org/multipage/origin.html#origin-isolation
<rdar://problem/69452369>