As of 2020-03-23 I intend to turn "Document as explicit root of an intersection observer" on by default on all platforms. It has been developed behind the dom.IntersectionObserverExplicitDocumentRoot.enabled preference. Status in other browsers is: landed in WebKit development build without flag ; shipped in Chromium since version 81.
Bug to turn on by default: https://bugzilla.mozilla.org/show_bug.cgi?id=1623623 This feature was previously discussed in this "Intent to prototype" thread: https://groups.google.com/forum/#!msg/mozilla.dev.platform/64nDLTAZGzY/CQMV7WqtCAAJ. -- Frédéric Wang _______________________________________________ dev-platform mailing list email@example.com https://lists.mozilla.org/listinfo/dev-platform