200776 2019-08-15 11:18:14 -0700 IntersectionObserverEntry#intersectionRatio can be larger than 1 2019-09-13 11:47:03 -0700 1 1 1 Unclassified WebKit Layout and Rendering Safari Technology Preview Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 timdream ajuma ajuma bfulgham cdumez commit-queue dbates esprehn+autocc ews-watchlist kangil.han simon.fraser timdream webkit-bug-importer zalan oldest_to_newest 1561642 0 376398 timdream 2019-08-15 11:18:14 -0700 Created attachment 376398 test case STR: Load the minimal test case. the callback will put the intersectionRatio on the page. Expected: The intersectionRatio should be exactly 1 in this case because the element is entirely in the viewport. Actual: It's 1.0270270109176636. The spec states it should be a number between 0 and 1. https://w3c.github.io/IntersectionObserver/#dom-intersectionobserverentry-intersectionratio This is also reproducible on Chrome but not Firefox. 1561643 1 timdream 2019-08-15 11:19:41 -0700 Tested on Release 89 (Safari 13.1, WebKit 14609.1.1) 1561647 2 timdream 2019-08-15 11:25:23 -0700 Filed on Chromium as https://bugs.chromium.org/p/chromium/issues/detail?id=994298 1561714 3 timdream 2019-08-15 13:20:08 -0700 Still producible on WebKit Nightly Version 12.1.2 (14607.3.9, 609+) 1561814 4 webkit-bug-importer 2019-08-15 16:26:54 -0700 <rdar://problem/54368559> 1570593 5 378731 ajuma 2019-09-13 08:54:10 -0700 Created attachment 378731 Patch 1570651 6 378731 commit-queue 2019-09-13 11:47:01 -0700 Comment on attachment 378731 Patch Clearing flags on attachment: 378731 Committed r249845: <https://trac.webkit.org/changeset/249845> 1570652 7 commit-queue 2019-09-13 11:47:03 -0700 All reviewed patches have been landed. Closing bug. 376398 2019-08-15 11:18:14 -0700 2019-08-15 11:18:14 -0700 test case test.html text/html 657 timdream PHN0eWxlPgpodG1sLCBib2R5IHsKICAgIGhlaWdodDogMTAwJTsKfQoKI2RpdjEgewogICAgcG9z aXRpb246IC13ZWJraXQtc3RpY2t5OwogICAgcG9zaXRpb246IHN0aWNreTsKICAgIGhlaWdodDog MTAlOwp9CgojZGl2MTEgewogICAgd2lkdGg6IDEwMCU7CgogICAgYmFja2dyb3VuZDogcmViZWNj YXB1cnBsZTsKICAgIGNvbG9yOiB3aGl0ZTsKICAgIHRyYW5zZm9ybTogdHJhbnNsYXRlM2QoMCwg MCwgMCk7CiAgICBvdmVyZmxvdzogaGlkZGVuOwp9Cgo8L3N0eWxlPgoKPHNjcmlwdD4KCndpbmRv dy5vbmxvYWQgPSAoKSA9PiB7CiAgbGV0IGVsID0gZG9jdW1lbnQucXVlcnlTZWxlY3RvcigiaDEi KTsKCiAgbGV0IG9icyA9IG5ldyBJbnRlcnNlY3Rpb25PYnNlcnZlcigKICAgIChlbnRyaWVzKSA9 PiB7CiAgICAgIGVsLnRleHRDb250ZW50ID0gImludGVyc2VjdGlvblJhdGlvOiAiICsgZW50cmll c1swXS5pbnRlcnNlY3Rpb25SYXRpbzsKICAgIH0sIHsKICAgICAgcm9vdDogbnVsbCwKICAgICAg dGhyZXNob2xkOiBbMF0KICAgIH0KICApOwoKICBvYnMub2JzZXJ2ZShlbCk7Cn0KCjwvc2NyaXB0 Pgo8ZGl2IGlkPSJkaXYxIj48L2Rpdj4KPGRpdiBpZD0iZGl2MTEiPgogIDxoMT5XYWl0aW5nIGZv 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