134449 2014-06-30 11:21:15 -0700 iOS8 touch overflow scrolling events bubbles to lower z-index scrollable container 2019-02-06 09:18:46 -0800 1 1 1 Unclassified WebKit DOM 528+ (Nightly build) iPhone / iPad Other NEW InRadar P2 Normal --- 1 jkwok webkit-unassigned dbates kpeatt simon.fraser webkit-bug-importer oldest_to_newest 1019361 0 234084 jkwok 2014-06-30 11:21:15 -0700 Created attachment 234084 Demo Scenario: - 2 scrollable containers with -webkit-overflow-scrolling: touch - First container occupies the entire document with z-index: 0 - First container has content > its bounds - Second container occupies a portion of the document with z-index > 0 (e.g. modal) - Second container has no content, or contents that occupy <= 100% its bounds On iOS7, the touch events within the second container are captured in the second container and stops propagation up to the first container. On iOS8, the touch events within the second container propagate up to the first container, i.e. causing the first container's contents to scroll. Possible regression? 1044138 1 webkit-bug-importer 2014-10-25 13:34:41 -0700 <rdar://problem/18774558> 1503243 2 lforschler 2019-02-06 09:18:46 -0800 Mass move bugs into the DOM component. 234084 2014-06-30 11:21:15 -0700 2014-06-30 11:21:15 -0700 Demo index.html text/html 1041 jkwok PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8aGVhZD4KICAgIDx0aXRsZT48L3RpdGxlPgogICAgPG1l dGEgbmFtZT0ndmlld3BvcnQnIGNvbnRlbnQ9J3dpZHRoPWRldmljZS13aWR0aCwgaW5pdGlhbC1z Y2FsZT0xLjAsIG1heGltdW0tc2NhbGU9MS4wLCBtaW5pbXVtLXNjYWxlPTEuMCwgdXNlci1zY2Fs YWJsZT1ubycvPgogICAgPHN0eWxlPgogICAgICAgICN3cmFwcGVyIHsKICAgICAgICAgIHBvc2l0 aW9uOiBhYnNvbHV0ZTsKICAgICAgICAgIHRvcDogMDsKICAgICAgICAgIGJvdHRvbTogMDsKICAg ICAgICAgIGxlZnQ6IDA7CiAgICAgICAgICByaWdodDogMDsKICAgICAgICAgIG92ZXJmbG93OiBz Y3JvbGw7CiAgICAgICAgICAtd2Via2l0LW92ZXJmbG93LXNjcm9sbGluZzogdG91Y2g7CiAgICAg ICAgfQoKICAgICAgICAjY29udGVudCB7CiAgICAgICAgICB3aWR0aDogMTAwJTsKICAgICAgICAg IGhlaWdodDogNTAwMHB4OwogICAgICAgICAgYmFja2dyb3VuZDogbGluZWFyLWdyYWRpZW50KHRv IGJvdHRvbSwgI2JhMjUyNSAwJSwjZmZjYzAwIDEwMCUpOwogICAgICAgIH0KCiAgICAgICAgI21v ZGFsIHsKICAgICAgICAgIHBvc2l0aW9uOiBhYnNvbHV0ZTsKICAgICAgICAgIHRvcDogMTBweDsK ICAgICAgICAgIGhlaWdodDogNTAwcHg7CiAgICAgICAgICBsZWZ0OiAxMCU7CiAgICAgICAgICBy aWdodDogMTAlOwogICAgICAgICAgYmFja2dyb3VuZC1jb2xvcjogIzMzMzsKICAgICAgICAgIHot aW5kZXg6IDIwMDsKICAgICAgICAgIC8qIGlPUzcgYmVoYXZpb3I6IENhcHR1cmVzIGFsbCB0b3Vj aCBhbmQgc2Nyb2xsIGV2ZW50cyAqLwogICAgICAgICAgb3ZlcmZsb3c6IHNjcm9sbDsKICAgICAg ICAgIC13ZWJraXQtb3ZlcmZsb3ctc2Nyb2xsaW5nOiB0b3VjaDsKICAgICAgICB9CiAgICA8L3N0 eWxlPgo8L2hlYWQ+Cjxib2R5PgogICAgPGRpdiBpZD0nd3JhcHBlcic+CiAgICAgICAgPGRpdiBp ZD0nY29udGVudCc+PC9kaXY+CiAgICA8L2Rpdj4KICAgIDxkaXYgaWQ9J21vZGFsJz48L2Rpdj4K PC9ib2R5Pgo8L2h0bWw+