Bug 307963

Summary: ASSERTION FAILED: !isSkippedContentRoot(*this) in WebCore::RenderBox::foregroundIsKnownToBeOpaqueInRect
Product: WebKit Reporter: Fujii Hironori <fujii>
Component: Layout and RenderingAssignee: Fujii Hironori <fujii>
Status: RESOLVED FIXED    
Severity: Normal CC: bfulgham, simon.fraser, webkit-bug-importer, zalan
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
See Also: https://bugs.webkit.org/show_bug.cgi?id=291163
https://github.com/web-platform-tests/wpt/pull/58360
Attachments:
Description Flags
reduced content
none
test case none

Fujii Hironori
Reported 2026-02-15 18:43:38 PST
1. ./Tools/Scripts/run-minibrowser --gtk --debug "https://www.msn.com/ja-jp?bundles=staging" 2. ASSERTION FAILED ASSERTION FAILED: !isSkippedContentRoot(*this) ../../../Source/WebCore/rendering/RenderBox.cpp(1916) : virtual bool WebCore::RenderBox::foregroundIsKnownToBeOpaqueInRect(const LayoutRect &, unsigned int) const 1 0x7fda5f27d926 WebCore::RenderBox::foregroundIsKnownToBeOpaqueInRect(WebCore::LayoutRect const&, unsigned int) const 2 0x7fda5f27dc06 WebCore::RenderBox::foregroundIsKnownToBeOpaqueInRect(WebCore::LayoutRect const&, unsigned int) const 3 0x7fda5f27e6c1 WebCore::RenderBox::computeBackgroundIsKnownToBeObscured(WebCore::LayoutPoint const&) 4 0x7fda5f0eed5b WebCore::RenderBox::backgroundIsKnownToBeObscured(WebCore::LayoutPoint const&)::{lambda()#1}::operator()() const 5 0x7fda5f0dff8e WebCore::RenderBox::backgroundIsKnownToBeObscured(WebCore::LayoutPoint const&) 6 0x7fda5f0dfb19 WebCore::BackgroundPainter::paintBackground(WebCore::LayoutRect const&, WebCore::BleedAvoidance) const 7 0x7fda5f27cf5f WebCore::RenderBox::paintBoxDecorations(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 8 0x7fda5f1e5e8d WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 9 0x7fda5f1e4aab WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 10 0x7fda5f1e5671 WebCore::RenderBlock::paintChild(WebCore::RenderBox&, WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool, WebCore::RenderBlock::PaintBlockType) 11 0x7fda5f20f845 WebCore::RenderBlockFlow::paintBlockLevelContentInInline(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 12 0x7fda5e061467 WebCore::LayoutIntegration::LineLayout::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::RenderInline const*) 13 0x7fda5f20f70d WebCore::RenderBlockFlow::paintInlineChildren(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 14 0x7fda5f1e4f98 WebCore::RenderBlock::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 15 0x7fda5f1e676c WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 16 0x7fda5f1e4aab WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 17 0x7fda5f1e5671 WebCore::RenderBlock::paintChild(WebCore::RenderBox&, WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool, WebCore::RenderBlock::PaintBlockType) 18 0x7fda5f1e514c WebCore::RenderBlock::paintChildren(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool) 19 0x7fda5f1e4ff3 WebCore::RenderBlock::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 20 0x7fda5f1e676c WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 21 0x7fda5f1e4aab WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 22 0x7fda5f1e5671 WebCore::RenderBlock::paintChild(WebCore::RenderBox&, WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool, WebCore::RenderBlock::PaintBlockType) 23 0x7fda5f20f845 WebCore::RenderBlockFlow::paintBlockLevelContentInInline(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 24 0x7fda5e061467 WebCore::LayoutIntegration::LineLayout::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::RenderInline const*) 25 0x7fda5f20f70d WebCore::RenderBlockFlow::paintInlineChildren(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 26 0x7fda5f1e4f98 WebCore::RenderBlock::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 27 0x7fda5f1e676c WebCore::RenderBlock::paintObject(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 28 0x7fda5f1e4aab WebCore::RenderBlock::paint(WebCore::PaintInfo&, WebCore::LayoutPoint const&) 29 0x7fda5f1e5671 WebCore::RenderBlock::paintChild(WebCore::RenderBox&, WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool, WebCore::RenderBlock::PaintBlockType) 30 0x7fda5f1e514c WebCore::RenderBlock::paintChildren(WebCore::PaintInfo&, WebCore::LayoutPoint const&, WebCore::PaintInfo&, bool) 31 0x7fda5f1e4ff3 WebCore::RenderBlock::paintContents(WebCore::PaintInfo&, WebCore::LayoutPoint const&)
Attachments
reduced content (31.92 KB, text/html)
2026-02-15 18:43 PST, Fujii Hironori 		no flags
Details
test case (310 bytes, text/html)
2026-03-05 23:11 PST, Fujii Hironori 		no flags
Details
Show Obsolete (1) View All Add attachment proposed patch, testcase, etc.
Fujii Hironori
Comment 1 2026-02-15 18:43:56 PST
Created attachment 478366 [details] reduced content
Radar WebKit Bug Importer
Comment 2 2026-02-22 18:44:10 PST
<rdar://problem/170945759>
Fujii Hironori
Comment 3 2026-03-05 23:11:21 PST
Created attachment 478573 [details] test case
Fujii Hironori
Comment 4 2026-03-05 23:58:06 PST
Pull request: https://github.com/WebKit/WebKit/pull/60048
EWS
Comment 5 2026-03-08 19:47:25 PDT
Committed 308897@main (ca3b56d49b32): <https://commits.webkit.org/308897@main> Reviewed commits have been landed. Closing PR #60048 and removing active labels.
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