241730 2022-06-17 16:05:19 -0700 IntersectionObserver stops tracking when cmd+ is used to zoom in 2022-06-24 10:16:00 -0700 1 1 1 Unclassified WebKit DOM Safari Technology Preview Unspecified Unspecified RESOLVED FIXED https://bugs.webkit.org/show_bug.cgi?id=241951 InRadar P2 Normal --- 1 simon.fraser simon.fraser simon.fraser oldest_to_newest 1876546 0 simon.fraser 2022-06-17 16:05:19 -0700 When Zooming IN using cmd +, IntersectionObserver stops observing. Steps To Reproduce: 1. Open the attached example 2. Scroll Down 3. Assert it works fine and highlights the items at around 35% from top. 4. Now zoom in. 5. Assert it no longer highlights 1876547 1 460317 simon.fraser 2022-06-17 16:05:48 -0700 Created attachment 460317 Test 1876551 2 simon.fraser 2022-06-17 16:17:55 -0700 Pull request: https://github.com/WebKit/WebKit/pull/1604 1878088 3 simon.fraser 2022-06-23 18:43:12 -0700 <rdar://92272892> 1878190 4 ews-feeder 2022-06-24 10:15:56 -0700 Committed 251829@main (ee62d87260e8): <https://commits.webkit.org/251829@main> Reviewed commits have been landed. Closing PR #1604 and removing active labels. 460317 2022-06-17 16:05:48 -0700 2022-06-17 16:05:48 -0700 Test intersection-observer-and-zoom-percentage-root-margins.html text/html 1691 simon.fraser PCFET0NUWVBFIGh0bWw+CjxodG1sIGxhbmc9ImVuIj4KPGhlYWQ+CiAgICA8bWV0YSBuYW1lPSJ2 aWV3cG9ydCIgY29udGVudD0id2lkdGg9ZGV2aWNlLXdpZHRoLCB1c2VyLXNjYWxhYmxlPW5vLCBp bml0aWFsLXNjYWxlPTEuMCwgbWF4aW11bS1zY2FsZT0xLjAsIG1pbmltdW0tc2NhbGU9MS4wIj4K ICAgIDxzdHlsZT4KICAgICAgICBib2R5IHsKICAgICAgICAgICAgaGVpZ2h0OiA1MDAwcHg7CiAg ICAgICAgfQogICAgICAgICN0YXJnZXQgewogICAgICAgICAgICBtYXJnaW4tdG9wOiA4MDBweDsK ICAgICAgICAgICAgbWFyZ2luLWxlZnQ6IDMwcHg7CiAgICAgICAgICAgIGhlaWdodDogNTB2aDsK ICAgICAgICAgICAgYmFja2dyb3VuZDogI2VmZGY4NTsKICAgICAgICB9CgogICAgICAgICN0YXJn ZXQuaW50ZXJzZWN0aW5nIHsKICAgICAgICAgICAgYmFja2dyb3VuZDogI2ZmYjBiMDsKICAgICAg ICB9CgogICAgICAgICN0YXJnZXQuaW50ZXJzZWN0aW5nOmFmdGVyIHsKICAgICAgICAgICAgY29u dGVudDogJyAgIEludGVyc2VjdGluZyEhIScKICAgICAgICB9CiAgICAgICAgCiAgICAgICAgLmlu ZGljYXRvciB7CiAgICAgICAgICAgIHBvc2l0aW9uOiBmaXhlZDsKICAgICAgICAgICAgbGVmdDog MDsKICAgICAgICAgICAgd2lkdGg6IDIwcHg7CiAgICAgICAgICAgIGJhY2tncm91bmQtY29sb3I6 IHNpbHZlcjsKICAgICAgICB9CiAgICAgICAgCiAgICAgICAgLnRvcCB7CiAgICAgICAgICAgIHRv cDogMDsKICAgICAgICAgICAgaGVpZ2h0OiA0MCU7CiAgICAgICAgfQogICAgICAgIC5ib3R0b20g ewogICAgICAgICAgICBib3R0b206IDA7CiAgICAgICAgICAgIGhlaWdodDogNDAlOwogICAgICAg IH0KICAgIDwvc3R5bGU+CjwvaGVhZD4KPGJvZHk+CiAgICA8ZGl2IGlkPSJ0YXJnZXQiPjwvZGl2 PgogICAgCiAgICA8ZGl2IGNsYXNzPSJ0b3AgaW5kaWNhdG9yIj48L2Rpdj4KICAgIDxkaXYgY2xh c3M9ImJvdHRvbSBpbmRpY2F0b3IiPjwvZGl2PgoKICAgIDxzY3JpcHQ+CiAgICBjb25zdCB0aHJl c2hvbGQgPSBbXTsKICAgIGZvciAobGV0IGkgPSAwLjA7IGkgPD0gMS4wOyBpICs9IDAuMDEpIHsK ICAgICAgICB0aHJlc2hvbGQucHVzaChpKTsKICAgIH0KCiAgICBjb25zdCBsaSA9IGRvY3VtZW50 LnF1ZXJ5U2VsZWN0b3JBbGwoJyN0YXJnZXQnKTsKICAgIGNvbnN0IG9iID0gbmV3IEludGVyc2Vj dGlvbk9ic2VydmVyKChpdGVtcykgPT4gewogICAgICAgIGl0ZW1zLmZvckVhY2goKHsKICAgICAg ICAgICAgaXNJbnRlcnNlY3RpbmcsCiAgICAgICAgICAgIHRhcmdldAogICAgICAgIH0pID0+IHsK ICAgICAgICAgICAgaWYgKGlzSW50ZXJzZWN0aW5nKSB7CiAgICAgICAgICAgICAgICB0YXJnZXQu Y2xhc3NMaXN0LmFkZCgnaW50ZXJzZWN0aW5nJyk7CiAgICAgICAgICAgIH0gZWxzZSB7CiAgICAg ICAgICAgICAgICB0YXJnZXQuY2xhc3NMaXN0LnJlbW92ZSgnaW50ZXJzZWN0aW5nJyk7CiAgICAg ICAgICAgIH0KICAgICAgICB9KTsKICAgIH0sIHsKICAgICAgICByb290OiBudWxsLAogICAgICAg IHJvb3RNYXJnaW46ICctNDAlIDBweCAtNDAlIDBweCcsCiAgICAgICAgdGhyZXNob2xkLAogICAg fSk7CiAgICBsaS5mb3JFYWNoKChpdGVtKSA9PiB7CiAgICAgICAgb2Iub2JzZXJ2ZShpdGVtKTsK ICAgIH0pOwogICAgPC9zY3JpcHQ+CjwvYm9keT4KPC9odG1sPgo=