RESOLVED FIXED231767
Enable Intersection Observer in WebKit1 
https://bugs.webkit.org/show_bug.cgi?id=231767
Summary Enable Intersection Observer in WebKit1
Nikos Mouchtaris
Reported 2021-10-14 13:32:56 PDT
Enable Image Observer by default in WebKit1
Attachments
Add attachment proposed patch, testcase, etc.
Nikos Mouchtaris
Comment 1 2021-10-14 16:54:25 PDT
rdar://84280812
Simon Fraser (smfr)
Comment 2 2021-11-04 17:05:02 PDT
I wonder how much of the problem described in https://twitter.com/html5test/status/1456304856696827918 is this bug.
Sam Sneddon [:gsnedders]
Comment 3 2022-06-20 16:57:58 PDT
Potentially also https://github.com/Financial-Times/polyfill-library/issues/1192
Chris Dumez
Comment 4 2022-06-22 08:31:38 PDT
Pull request: https://github.com/WebKit/WebKit/pull/1681
EWS
Comment 5 2022-06-23 10:58:51 PDT
Committed 251787@main (ea72d728429e): <https://commits.webkit.org/251787@main> Reviewed commits have been landed. Closing PR #1681 and removing active labels.
Simon Fraser (smfr)
Comment 6 2022-12-22 16:32:42 PST
I think it's broken in UIWebView: bug 249827.
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