The fixed header in the Libby app search results flickers on scrolling. It's position:fixed inside overflow:scroll, with a transformed ancestor.
<rdar://104095908>
Pull request: https://github.com/WebKit/WebKit/pull/8675
Committed 259175@main (2f33fa54c405): <https://commits.webkit.org/259175@main> Reviewed commits have been landed. Closing PR #8675 and removing active labels.