NEW 210802
IRS.gov intermittently stops scrolling suddenly 
https://bugs.webkit.org/show_bug.cgi?id=210802
Summary IRS.gov intermittently stops scrolling suddenly
tym46383
Reported 2020-04-21 09:50:15 PDT
On https://irs.gov, swiping quickly to move the page up or down will sometimes abruptly stop at a random spot in the middle of the page. This doesn't seem to happen on Mac, but it is present on iPad with the latest 13.4.5 beta. Also, if I try to grab the scrollbar and pull down, it resets to the top. However, if I'm at the bottom of the page and drag it to go up, it works as expected.
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Radar WebKit Bug Importer
Comment 1 2020-04-22 15:03:28 PDT
<rdar://problem/62213022>
Simon Fraser (smfr)
Comment 2 2020-04-22 15:17:24 PDT
I can reproduce. Doesn't happen if JS is paused, so the page is probably triggering a programmatic scroll.
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