203003 2019-10-15 13:26:02 -0700 REGRESSION (r240250): Pages using smoothscroll.js can't be scrolled with trackpad 2020-03-20 13:25:43 -0700 1 1 1 Unclassified WebKit Scrolling WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 207040 https://bugs.webkit.org/show_bug.cgi?id=189472 InRadar P2 Normal --- 1 simon.fraser webkit-unassigned ajuma fred.wang mcatanzaro simon.fraser webkit-bug-importer oldest_to_newest 1580222 0 simon.fraser 2019-10-15 13:26:02 -0700 r240250 broke scrolling on pages using the smoothscroll.js library: https://cigarobsession.com http://fn57sale.com https://chopeshift.challenger.sg 1580223 1 simon.fraser 2019-10-15 13:26:28 -0700 rdar://problem/52712513 1580224 2 simon.fraser 2019-10-15 13:26:47 -0700 Need to see if these sites are also broken in Chrome, and if not, why not. 1580242 3 ajuma 2019-10-15 13:57:18 -0700 (In reply to Simon Fraser (smfr) from comment #2) > Need to see if these sites are also broken in Chrome, and if not, why not. This is the Chromium bug for sites with smoothscroll.js being broken by the change to document.documentElement as the viewport scroller: https://bugs.chromium.org/p/chromium/issues/detail?id=501568 It was fixed by this intervention in Blink, that targets smoothscroll.js: https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/2iOz5-fgD8Y/GO7qLkg4BwAJ 1632243 4 mcatanzaro 2020-03-20 13:25:43 -0700 *** This bug has been marked as a duplicate of bug 207040 ***