287715 2025-02-14 10:44:34 -0800 AX: attached layout test triggers assertion in AXIsolatedObject::children 2025-02-14 10:51:36 -0800 1 1 1 Unclassified WebKit Accessibility WebKit Nightly Build All All NEW InRadar P2 Normal --- 1 dm_mazzoni dm_mazzoni andresg_22 webkit-bug-importer oldest_to_newest 2094819 0 474235 dm_mazzoni 2025-02-14 10:44:34 -0800 Created attachment 474235 Proposed layout test that demonstrates assertion failure The attached layout test triggers ASSERT(m_children.size() == m_childrenIDs.size()); It appears that a subtree gets removed without the children vector being updated 2094821 1 webkit-bug-importer 2025-02-14 10:44:43 -0800 <rdar://problem/144874873> 474235 2025-02-14 10:44:34 -0800 2025-02-14 10:44:34 -0800 Proposed layout test that demonstrates assertion failure random-styles.html text/html 2272 dm_mazzoni PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9JRVRGLy9EVEQgSFRNTC8vRU4iPgo8aHRtbD4KPGhl YWQ+CjxzY3JpcHQgc3JjPSIuLi8uLi9yZXNvdXJjZXMvYWNjZXNzaWJpbGl0eS1oZWxwZXIuanMi Pjwvc2NyaXB0Pgo8c2NyaXB0IHNyYz0iLi4vLi4vcmVzb3VyY2VzL2pzLXRlc3QuanMiPjwvc2Ny aXB0Pgo8L2hlYWQ+Cjxib2R5PgoKPHN0eWxlPgogICAgLmJsb2NrIHsKICAgICAgICB3aWR0aDog NTBweDsKICAgICAgICBoZWlnaHQ6IDUwcHg7CiAgICAgICAgbWFyZ2luOiAxMHB4OwogICAgICAg IGxpbmUtaGVpZ2h0OiA1MHB4OwogICAgICAgIGJvcmRlcjogMXB4IHNvbGlkICMwMDA7CiAgICAg ICAgZGlzcGxheTogaW5saW5lLWJsb2NrOwogICAgfQogICAgYnV0dG9uIHsKICAgICAgICBkaXNw bGF5OiBub25lOwogICAgfQogICAgLnNob3duIHsgZGlzcGxheTogYmxvY2s7IH0KPC9zdHlsZT4K Cjxib2R5Pgo8ZGl2IGlkPSJjb250YWluZXIiPjwvZGl2PgoKPHNjcmlwdD4KICAgIGNvbnN0IGJs b2NrQ291bnQgPSAxMDA7CiAgICBjb25zdCBidXR0b25zID0gW107CiAgICBjb25zdCBheEJsb2Nr cyA9IFtdOwogICAgY29uc3QgY29udGFpbmVyID0gZG9jdW1lbnQuZ2V0RWxlbWVudEJ5SWQoImNv bnRhaW5lciIpOwoKICAgIGZvciAobGV0IGkgPSAwOyBpIDwgYmxvY2tDb3VudDsgaSsrKSB7CiAg ICAgICAgY29uc3QgYmxvY2sgPSBkb2N1bWVudC5jcmVhdGVFbGVtZW50KCJhcnRpY2xlIik7CiAg ICAgICAgYmxvY2suY2xhc3NOYW1lID0gImJsb2NrIjsKICAgICAgICBibG9jay5pZCA9ICJibG9j ayIgKyBpOwogICAgICAgIGNvbnRhaW5lci5hcHBlbmRDaGlsZChibG9jayk7CgogICAgICAgIGNv bnN0IGJ1dHRvbiA9IGRvY3VtZW50LmNyZWF0ZUVsZW1lbnQoImJ1dHRvbiIpOwogICAgICAgIGJ1 dHRvbi5pbm5lclRleHQgPSBpOwogICAgICAgIGlmIChNYXRoLnJhbmRvbSgpID4gMC41KSB7CiAg ICAgICAgICAgIGJ1dHRvbi5jbGFzc0xpc3QuYWRkKCdzaG93bicpOwogICAgICAgIH0KICAgICAg ICBibG9jay5hcHBlbmRDaGlsZChidXR0b24pOwogICAgICAgIGJ1dHRvbnMucHVzaChidXR0b24p OwogICAgfQoKICAgIGlmICh3aW5kb3cuYWNjZXNzaWJpbGl0eUNvbnRyb2xsZXIpIHsKICAgICAg ICB3aW5kb3cuanNUZXN0SXNBc3luYyA9IHRydWU7CgogICAgICAgIGZvciAobGV0IGkgPSAwOyBp IDwgYmxvY2tDb3VudDsgaSsrKSB7CiAgICAgICAgICAgIGNvbnN0IGF4QmxvY2sgPSBhY2Nlc3Np YmlsaXR5Q29udHJvbGxlci5hY2Nlc3NpYmxlRWxlbWVudEJ5SWQoImJsb2NrIiArIGkpOwogICAg ICAgICAgICBheEJsb2Nrcy5wdXNoKGF4QmxvY2spOwogICAgICAgIH0KCiAgICAgICAgdmFyIGl0 ZXJhdGlvbnMgPSAwOwogICAgICAgIGNvbnN0IGludGVydmFsSUQgPSBzZXRJbnRlcnZhbCgoKSA9 PiB7CiAgICAgICAgICAgIGZvciAobGV0IGkgPSAwOyBpIDwgYmxvY2tDb3VudDsgaSsrKSB7CiAg ICAgICAgICAgICAgICBpZiAoTWF0aC5yYW5kb20oKSA+IDAuNSkgewogICAgICAgICAgICAgICAg ICAgIGJ1dHRvbnNbaV0uY2xhc3NMaXN0LmFkZCgnc2hvd24nKTsKICAgICAgICAgICAgICAgIH0g ZWxzZSB7CiAgICAgICAgICAgICAgICAgICAgYnV0dG9uc1tpXS5jbGFzc0xpc3QucmVtb3ZlKCdz aG93bicpOwogICAgICAgICAgICAgICAgfQogICAgICAgICAgICB9CgogICAgICAgICAgICBmb3Ig KGxldCBpID0gMDsgaSA8IDEwOyBpKyspIHsKICAgICAgICAgICAgICAgIGNvbnN0IGJsb2NrTnVt ID0gTWF0aC5mbG9vcihibG9ja0NvdW50ICogTWF0aC5yYW5kb20oKSk7CiAgICAgICAgICAgICAg ICBjb25zdCBheEJsb2NrID0gYXhCbG9ja3NbYmxvY2tOdW1dOwogICAgICAgICAgICAgICAgY29u c3QgYXhCdXR0b24gPSBheEJsb2NrLmNoaWxkQXRJbmRleCgwKTsKICAgICAgICAgICAgICAgIGlm IChheEJ1dHRvbikgewogICAgICAgICAgICAgICAgICAgIGF4QnV0dG9uLnRpdGxlOwogICAgICAg ICAgICAgICAgfQogICAgICAgICAgICB9CgogICAgICAgICAgICBpdGVyYXRpb25zKys7CiAgICAg ICAgICAgIGlmIChpdGVyYXRpb25zID09IDEwMCkgewogICAgICAgICAgICAgICAgY2xlYXJJbnRl cnZhbChpbnRlcnZhbElEKTsKICAgICAgICAgICAgICAgIGRvY3VtZW50LmdldEVsZW1lbnRCeUlk KCJjb250YWluZXIiKS5oaWRkZW4gPSB0cnVlOwogICAgICAgICAgICAgICAgZmluaXNoSlNUZXN0 KCk7CiAgICAgICAgICAgIH0KICAgICAgICB9LCA0KTsKICAgIH0KPC9zY3JpcHQ+Cg==