190493 2018-10-11 15:06:35 -0700 [IntersectionObserver] Update intersection observations on iframe scroll 2018-11-05 11:05:57 -0800 1 1 1 Unclassified WebKit Layout and Rendering WebKit Local Build Unspecified Unspecified RESOLVED WORKSFORME P2 Normal --- 165746 1 ajuma ajuma bfulgham simon.fraser zalan oldest_to_newest 1468192 0 ajuma 2018-10-11 15:06:35 -0700 With the current WIP IntersectionObserver patches, scrolling an iframe (on desktop, via user interaction, not by JS) doesn't trigger an IntersectionObserver update. We need to fix that. 1475175 1 ajuma 2018-11-05 11:05:57 -0800 This no longer reproduces.