215256 2020-08-06 23:00:33 -0700 backdrop-filter restricts child elements with position: fixed; 2023-09-17 20:45:07 -0700 1 1 1 Unclassified WebKit Compositing WebKit Local Build All All RESOLVED INVALID InRadar P2 Normal --- 1 zerdox.cool4 webkit-unassigned cn.xiaoshan dino mattwoodrow simon.fraser webkit-bug-importer zerdox.cool4 oldest_to_newest 1678526 0 406154 zerdox.cool4 2020-08-06 23:00:33 -0700 Created attachment 406154 check input to remove backdrop-filter. see source code Elements with position:fixed; can't get out of the parent element that has backdrop-filter; Reproduced bug attached 1678936 1 webkit-bug-importer 2020-08-08 17:49:17 -0700 <rdar://problem/66736710> 1977969 2 mattwoodrow 2023-09-17 20:45:07 -0700 This is the expected behaviour, backdrop-filter creates a containing block for position:fixed descendants. 406154 2020-08-06 23:00:33 -0700 2020-08-06 23:00:33 -0700 check input to remove backdrop-filter. see source code index.html text/html 723 zerdox.cool4 PCFkb2N0eXBlIGh0bWw+CjxodG1sIGxhbmc9ImVuIj4KPGhlYWQ+CiAgPG1ldGEgY2hhcnNldD0i VVRGLTgiPgogIDx0aXRsZT5Eb2N1bWVudDwvdGl0bGU+CiAgPHN0eWxlPgogICAgLmJhY2tkcm9w LWZpbHRlci1wYXJlbnQgewogICAgICBiYWNrZHJvcC1maWx0ZXI6IGJsdXIoMXB4KTsKICAgICAg YmFja2dyb3VuZC1jb2xvcjogc2lsdmVyOwogICAgICBkaXNwbGF5OiBpbmxpbmUtYmxvY2s7CiAg ICAgIHBhZGRpbmc6IDVlbTsKICAgIH0KICAgIC5maXhlZC1jaGlsZCB7CiAgICAgIHBvc2l0aW9u OiBmaXhlZDsKICAgICAgbGVmdDogMDsKICAgICAgcmlnaHQ6IDA7CiAgICAgIGJvdHRvbTogMDsK ICAgICAgdG9wOiAwOwogICAgICBiYWNrZ3JvdW5kOiByZ2IoMCAwIDAgLyAxMCUpOwogICAgICBw b2ludGVyLWV2ZW50czogbm9uZTsKICAgIH0KICAgIGlucHV0W3R5cGU9Y2hlY2tib3hdOmNoZWNr ZWQgfiAuYmFja2Ryb3AtZmlsdGVyLXBhcmVudCB7CiAgICAgIGJhY2tkcm9wLWZpbHRlcjogbm9u ZTsKICAgIH0KICA8L3N0eWxlPgo8L2hlYWQ+Cjxib2R5PgpjaGVjayB0byByZW1vdmUgYmFja2Ry b3AtZmlsdGVyIDxpbnB1dCB0eXBlPSJjaGVja2JveCI+CjxkaXYgY2xhc3M9ImJhY2tkcm9wLWZp bHRlci1wYXJlbnQiPgogIGJsdXItcGFyZW50CiAgPGRpdiBjbGFzcz0iZml4ZWQtY2hpbGQiPmZp eGVkLWNoaWxkPC9kaXY+CjwvZGl2Pgo8L2JvZHk+CjwvaHRtbD4K