RESOLVED DUPLICATE of bug 206559 206553
REGRESSION (r254807): Page Up/Page Down to scroll no longer work 
https://bugs.webkit.org/show_bug.cgi?id=206553
Summary REGRESSION (r254807): Page Up/Page Down to scroll no longer work
Simon Fraser (smfr)
Reported 2020-01-21 14:01:08 PST
Can't scroll from the keyboard after r254807.
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Radar WebKit Bug Importer
Comment 1 2020-01-21 14:01:36 PST
<rdar://problem/58772661>
Simon Fraser (smfr)
Comment 2 2020-01-21 15:17:09 PST
The change in ScrollableArea::setScrollOffsetFromAnimation(), that removed the call to requestScrollPositionUpdate() broke this. The changelog mentions this was removed to avoid iteration (I think it meant recursion), but through what codepath?
Simon Fraser (smfr)
Comment 3 2020-01-21 15:31:42 PST
We don't hit any of the newly added calls to requestScrollPositionUpdate() on macOS.
Simon Fraser (smfr)
Comment 4 2020-01-21 15:37:17 PST
*** This bug has been marked as a duplicate of bug 206559 ***
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