158147 2016-05-27 01:06:49 -0700 Element overlapping composited element outside of visible area in "-webkit-overflow-scrolling: touch" container does not show 2016-05-27 01:22:58 -0700 1 1 1 Unclassified WebKit Layout and Rendering WebKit Nightly Build iPhone / iPad iOS 9.3 NEW InRadar P2 Normal --- 158146 1 graouts webkit-unassigned simon.fraser webkit-bug-importer oldest_to_newest 1197003 0 graouts 2016-05-27 01:06:49 -0700 <rdar://problem/26513510> 1197004 1 webkit-bug-importer 2016-05-27 01:08:45 -0700 <rdar://problem/26513569> 1197005 2 279947 graouts 2016-05-27 01:09:39 -0700 Created attachment 279947 Reduction 1197009 3 graouts 2016-05-27 01:22:58 -0700 If an element overlaps a composited element and both of those elements are contained within a "-webkit-overflow-scrolling: touch" container but are laid out such that they are not initially visible, the overlapping element will not be composited and will be drawn beside the composited one. 279947 2016-05-27 01:09:39 -0700 2016-05-27 01:09:39 -0700 Reduction 158147-reduction.html text/html 1088 graouts PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8aGVhZD4KPG1ldGEgbmFtZT0idmlld3BvcnQiIGNvbnRl bnQ9IndpZHRoPWRldmljZS13aWR0aCIgLz4KPHN0eWxlPgoKICAgIC5zY3JvbGxpbmcgewogICAg ICAgIHdpZHRoOiAzMDBweDsKICAgICAgICBoZWlnaHQ6IDMwMHB4OwogICAgICAgIGJhY2tncm91 bmQtY29sb3I6IHBpbms7CgogICAgICAgIG92ZXJmbG93LXk6IHNjcm9sbDsKICAgICAgICAtd2Vi a2l0LW92ZXJmbG93LXNjcm9sbGluZzogdG91Y2g7CiAgICB9CgogICAgLnZpZGVvLWNvbnRhaW5l ciB7CiAgICAgICAgcG9zaXRpb246IHJlbGF0aXZlOwogICAgICAgIHdpZHRoOiAzMDBweDsKICAg ICAgICBoZWlnaHQ6IDYwMHB4OwogICAgfQoKICAgIC5iYWNrZHJvcCwgLmdseXBoIHsKICAgICAg ICBwb3NpdGlvbjogYWJzb2x1dGU7CiAgICAgICAgbGVmdDogMTE0cHg7CiAgICAgICAgLyogU2V0 IHRoaXMgdG8gMjk5cHggc28gdGhlIGJhY2tkcm9wIGFuZCBnbHlwaCBhcmUgaW4gdGhlIHZpc2li bGUgYXJlYSBhbmQgdGhlIGJ1ZyBkb2Vzbid0IHJlcHJvZHVjZSB0aGUgaXNzdWUgKi8KICAgICAg ICB0b3A6IDMwMHB4OwogICAgICAgIHdpZHRoOiA3MnB4OwogICAgICAgIGhlaWdodDogNzJweDsK ICAgIH0KCiAgICAuYmFja2Ryb3AgewogICAgICAgIGJhY2tncm91bmQtY29sb3I6IHJlZDsKICAg ICAgICAvKiBOb3QgZm9yY2luZyB0aGUgYmFja2Ryb3AgaW50byBhIGxheWVyIGRvZXNuJ3QgcmVw cm9kdWNlIHRoZSBpc3N1ZSAqLwogICAgICAgIC13ZWJraXQtdHJhbnNmb3JtOiB0cmFuc2xhdGVa KDApOwogICAgICAgIG9wYWNpdHk6IDAuNTsKICAgIH0KCiAgICAuZ2x5cGggewogICAgICAgIGJh Y2tncm91bmQtY29sb3I6IGdyZWVuOwogICAgfQoKPC9zdHlsZT4KPC9oZWFkPgo8Ym9keT4KICAg IDxkaXYgY2xhc3M9InNjcm9sbGluZyI+CiAgICAgICAgPGRpdiBjbGFzcz0idmlkZW8tY29udGFp bmVyIj4KICAgICAgICAgICAgPGRpdiBjbGFzcz0iYmFja2Ryb3AiPjwvZGl2PgogICAgICAgICAg ICA8ZGl2IGNsYXNzPSJnbHlwaCI+PC9kaXY+CiAgICAgICAgPC9kaXY+CiAgICA8L2Rpdj4KPC9i b2R5Pgo=