305800 2026-01-19 17:17:40 -0800 [Site Isolation] Fix crash in imported/w3c/web-platform-tests/html/cross-origin-opener-policy/iframe-popup-same-origin-allow-popups-to-same-origin-allow-popups.https.html 2026-01-27 03:26:57 -0800 1 1 1 Unclassified WebKit New Bugs WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 306324 1 sihui_liu sihui_liu webkit-bug-importer oldest_to_newest 2173140 0 sihui_liu 2026-01-19 17:17:40 -0800 ... 2173155 1 sihui_liu 2026-01-19 18:23:26 -0800 Thread 0 Crashed:: Dispatch queue: com.apple.main-thread 0 WebCore 0x117ab1eb4 WebCore::RenderLayerCompositor::cacheAcceleratedCompositingFlags() + 76 1 WebCore 0x11a132b2c WebCore::RenderLayerCompositor::cacheAcceleratedCompositingFlagsAfterLayout() + 28 2 WebCore 0x117abf41c WebCore::RenderLayerCompositor::updateCompositingLayers(WebCore::CompositingUpdateType, WebCore::RenderLayer*) + 116 3 WebCore 0x117baf440 WebCore::ThreadTimers::sharedTimerFiredInternal() + 320 4 WebCore 0x117b7c274 WebCore::timerFired(__CFRunLoopTimer*, void*) + 32 5 CoreFoundation 0x18297ac0c __CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 32 6 CoreFoundation 0x18297a904 __CFRunLoopDoTimer + 980 7 CoreFoundation 0x18297a47c __CFRunLoopDoTimers + 280 8 CoreFoundation 0x182960784 __CFRunLoopRun + 1816 9 CoreFoundation 0x182a325a8 _CFRunLoopRunSpecificWithOptions + 532 10 Foundation 0x18416bb34 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 212 11 Foundation 0x1841e3f90 -[NSRunLoop(NSRunLoop) run] + 64 12 libxpc.dylib 0x18258ebf8 _xpc_objc_main + 668 13 libxpc.dylib 0x1825a0b2c _xpc_main + 40 14 libxpc.dylib 0x18258e7b8 xpc_main + 64 15 WebKit 0x1086c9a7c WebKit::XPCServiceMain(int, char const**) + 44 16 dyld 0x1824f1244 start + 7188 2173156 2 webkit-bug-importer 2026-01-19 18:24:52 -0800 <rdar://problem/168472141> 2173162 3 sihui_liu 2026-01-19 18:33:01 -0800 Pull request: https://github.com/WebKit/WebKit/pull/56870 2173413 4 ews-feeder 2026-01-20 11:47:06 -0800 Committed 305891@main (19207091a2dd): <https://commits.webkit.org/305891@main> Reviewed commits have been landed. Closing PR #56870 and removing active labels.