314536 2026-05-11 00:23:41 -0700 [GTK][WPE] Skia Compositor: wrong layer position for the combination of backdrop-filter and clip-path 2026-05-21 00:00:20 -0700 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED DoNotImportToRadar P2 Normal --- 1 fujii fujii bugs-noreply oldest_to_newest 2209617 0 479591 fujii 2026-05-11 00:23:41 -0700 Created attachment 479591 test case [GTK][WPE] Skia Compositor: wrong layer position for the combination of backdrop-filter and mix-blend-mode 2209618 1 479592 fujii 2026-05-11 00:25:36 -0700 Created attachment 479592 WIP patch 2212508 2 fujii 2026-05-20 06:14:30 -0700 This test case no longer reproduce the artifact after 313560@main fixed another bug. I have to create another test case to reproduce this bug. 2212820 3 479749 fujii 2026-05-20 22:40:23 -0700 Created attachment 479749 new test case 2212826 4 fujii 2026-05-20 22:57:04 -0700 Pull request: https://github.com/WebKit/WebKit/pull/65377 2212835 5 ews-feeder 2026-05-21 00:00:17 -0700 Committed 313649@main (8eaa75cdf165): <https://commits.webkit.org/313649@main> Reviewed commits have been landed. Closing PR #65377 and removing active labels. 479591 2026-05-11 00:23:41 -0700 2026-05-20 22:40:23 -0700 test case a.html text/html 545 fujii PCFET0NUWVBFIGh0bWw+CjxzdHlsZT4KICBodG1sIHsKICAgICAgaGVpZ2h0OiAxMDAlOwogICAg ICBiYWNrZ3JvdW5kOiByZWQ7CiAgfQoKICAjcGFuZWwgewogICAgICBwb3NpdGlvbjogYWJzb2x1 dGU7CgogICAgICB0b3A6IDA7CiAgICAgIGxlZnQ6IDA7CiAgICAgIHdpZHRoOiAzMDBweDsKICAg ICAgaGVpZ2h0OiAzMDBweDsKCiAgICAgIC13ZWJraXQtYmFja2Ryb3AtZmlsdGVyOiBzYXR1cmF0 ZSgwLjIpOwogICAgICBiYWNrZHJvcC1maWx0ZXI6IHNhdHVyYXRlKDAuMik7CiAgfQoKICAjdGlu dCB7CiAgICAgIHBvc2l0aW9uOiBhYnNvbHV0ZTsKICAgICAgdG9wOiA3MHB4OwogICAgICBsZWZ0 OiA3MHB4OwogICAgICB3aWR0aDogMzAwcHg7CiAgICAgIGhlaWdodDogMzAwcHg7CgogICAgICBi YWNrZ3JvdW5kLWNvbG9yOiBncmVlbjsKICAgICAgbWl4LWJsZW5kLW1vZGU6IGxpZ2h0ZW47CiAg ICAgIHRyYW5zZm9ybTogdHJhbnNsYXRlWigwKTsKICB9Cjwvc3R5bGU+Cgo8ZGl2IGlkPSJwYW5l bCI+PC9kaXY+CjxkaXYgaWQ9InRpbnQiPjwvZGl2Pgo= 479592 2026-05-11 00:25:36 -0700 2026-05-11 00:25:36 -0700 WIP patch wip.patch text/plain 812 fujii ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL3BsYXRmb3JtL2dyYXBoaWNzL3NraWEvU2tpYUNv bXBvc2l0aW5nTGF5ZXIuY3BwIGIvU291cmNlL1dlYkNvcmUvcGxhdGZvcm0vZ3JhcGhpY3Mvc2tp YS9Ta2lhQ29tcG9zaXRpbmdMYXllci5jcHAKaW5kZXggZDAyOTQ2NWUxOGU5Li4zMGE2ZThkYzgy NzAgMTAwNjQ0Ci0tLSBhL1NvdXJjZS9XZWJDb3JlL3BsYXRmb3JtL2dyYXBoaWNzL3NraWEvU2tp YUNvbXBvc2l0aW5nTGF5ZXIuY3BwCisrKyBiL1NvdXJjZS9XZWJDb3JlL3BsYXRmb3JtL2dyYXBo aWNzL3NraWEvU2tpYUNvbXBvc2l0aW5nTGF5ZXIuY3BwCkBAIC03MjksNyArNzI5LDcgQEAgdm9p ZCBTa2lhQ29tcG9zaXRpbmdMYXllcjo6cGFpbnRXaXRoSW50ZXJtZWRpYXRlU3VyZmFjZShTa0Nh bnZhcyYgY2FudmFzLCBQYWludEMKIAogICAgIHN1cmZhY2VDYW52YXMtPmNsZWFyKFNLX0NvbG9y VFJBTlNQQVJFTlQpOwogICAgIHN1cmZhY2VDYW52YXMtPnRyYW5zbGF0ZSgtc3VyZmFjZVJlY3Qu eCgpLCAtc3VyZmFjZVJlY3QueSgpKTsKLSAgICBTZXRGb3JTY29wZSBzY29wZWRPZmZzZXQoY29u dGV4dC5vZmZzZXQsIHRvSW50U2l6ZShjb250ZW50c1JlY3QubG9jYXRpb24oKSkpOworICAgIFNl dEZvclNjb3BlIHNjb3BlZE9mZnNldChjb250ZXh0Lm9mZnNldCwgdG9JbnRTaXplKHN1cmZhY2VS ZWN0LmxvY2F0aW9uKCkpKTsKICAgICBwYWludEZ1bmN0aW9uKCpzdXJmYWNlQ2FudmFzLCBjb250 ZXh0KTsKICAgICBnckNvbnRleHQtPmZsdXNoQW5kU3VibWl0KHN1cmZhY2UuZ2V0KCksIEdyU3lu Y0NwdTo6a05vKTsKIAo= 479749 2026-05-20 22:40:23 -0700 2026-05-20 22:40:23 -0700 new test case b.html text/html 741 fujii PCFET0NUWVBFIGh0bWw+CjxodG1sPgo8aGVhZD4KICA8c3R5bGU+CiAgICAjYiB7CiAgICAgICAg cG9zaXRpb246IGFic29sdXRlOwogICAgICAgIGJhY2tncm91bmQ6IGdyZWVuOwogICAgICAgIHdp ZHRoOiAxMDBweDsKICAgICAgICBoZWlnaHQ6IDEwMHB4OwogICAgICAgIGxlZnQ6IDQ1MHB4Owog ICAgICAgIHRvcDogNTBweDsKICAgICAgICBvcGFjaXR5OiAwLjU7CiAgICAgICAgd2lsbC1jaGFu Z2U6IHRyYW5zZm9ybTsKICAgIH0KICAgICNjIHsKICAgICAgICBwb3NpdGlvbjogYWJzb2x1dGU7 CiAgICAgICAgYmFja2dyb3VuZDogYmx1ZTsKICAgICAgICB3aWR0aDogMTAwcHg7CiAgICAgICAg aGVpZ2h0OiAxMDBweDsKICAgICAgICBsZWZ0OiA1MHB4OwogICAgICAgIHRvcDogNTBweDsKICAg ICAgICB3aWxsLWNoYW5nZTogdHJhbnNmb3JtOwogICAgfQogICAgI2JsdXIgewogICAgICAgIHBv c2l0aW9uOiBhYnNvbHV0ZTsKICAgICAgICBsZWZ0OiA1MHB4OwogICAgICAgIHRvcDogNTBweDsK ICAgICAgICB3aWR0aDogNTAwcHg7CiAgICAgICAgaGVpZ2h0OiA1MDBweDsKICAgICAgICBiYWNr ZHJvcC1maWx0ZXI6IGludmVydCgpOwogICAgICAgIGNsaXAtcGF0aDogaW5zZXQoMjBweCk7CiAg ICB9Cjwvc3R5bGU+CjwvaGVhZD4KPGJvZHk+CiAgPGRpdiBpZD1iPgogICAgPGRpdiBpZD1jPgog ICAgPC9kaXY+CiAgPC9kaXY+CjxkaXYgaWQ9ImJsdXIiPjwvZGl2Pgo8L2JvZHk+CjwvaHRtbD4K