[Webkit-unassigned] [Bug 281239] New: Assertion fired in heise.de

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=281239

            Bug ID: 281239
           Summary: Assertion fired in heise.de
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: zimmermann at kde.org
                CC: koivisto at iki.fi

Just opened heise.de in MiniBrowser (on WPE port, but the problem looks cross-platform):

SHOULD NEVER BE REACHED
/host/home/nzimmermann/Software/GitRepositories/WebKit/WebKitBuild/WPE/Release/WebCore/DerivedSources/CSSPropertyParsing.cpp(4621) : static WTF::RefPtr<WebCore::CSSValue> WebCore::CSSPropertyParsing::parseStyleProperty(WebCore::CSSParserTokenRange&, WebCore::CSSPropertyID, WebCore::CSSPropertyID, const WebCore::CSSParserContext&)
1   0x70e274f9bcfb WebCore::CSSPropertyParsing::parseStyleProperty(WebCore::CSSParserTokenRange&, WebCore::CSSPropertyID, WebCore::CSSPropertyID, WebCore::CSSParserContext const&)
2   0x70e276f0ee65 WebCore::CSSPropertyParser::parseSingleValue(WebCore::CSSPropertyID, WebCore::CSSParserTokenRange const&, WebCore::CSSParserContext const&)
3   0x70e276dc17b9 WebCore::CSSVariableReferenceValue::resolveSingleValue(WebCore::Style::BuilderState&, WebCore::CSSPropertyID) const
4   0x70e2784fff8b WebCore::Style::Builder::resolveVariableReferences(WebCore::CSSPropertyID, WebCore::CSSValue&)
5   0x70e278510581 WebCore::Style::Builder::applyProperty(WebCore::CSSPropertyID, WebCore::CSSValue&, WebCore::SelectorChecker::LinkMatchMask)
6   0x70e2785117f8 WebCore::Style::Builder::applyCascadeProperty(WebCore::Style::PropertyCascade::Property const&)
7   0x70e278511e59 void WebCore::Style::Builder::applyPropertiesImpl<(WebCore::Style::Builder::CustomPropertyCycleTracking)0>(int, int)
8   0x70e278512413 WebCore::Style::Builder::applyNonHighPriorityProperties()
9   0x70e27855157a WebCore::Style::Resolver::applyMatchedProperties(WebCore::Style::Resolver::State&, WebCore::Style::MatchResult const&)
10  0x70e278551959 WebCore::Style::Resolver::styleForElement(WebCore::Element&, WebCore::Style::ResolutionContext const&, WebCore::RuleMatchingBehavior)
11  0x70e27855620a WebCore::Style::TreeResolver::styleForStyleable(WebCore::Styleable const&, WebCore::Style::TreeResolver::ResolutionType, WebCore::Style::ResolutionContext const&, WebCore::RenderStyle const*)
12  0x70e2785612da WebCore::Style::TreeResolver::resolveElement(WebCore::Element&, WebCore::RenderStyle const*, WebCore::Style::TreeResolver::ResolutionType)
13  0x70e278562a69 WebCore::Style::TreeResolver::resolveComposedTree()
14  0x70e27856358b WebCore::Style::TreeResolver::resolve()
15  0x70e277101c9e WebCore::Document::resolveStyle(WebCore::Document::ResolveStyleType)
16  0x70e277102479 WebCore::Document::updateStyleIfNeeded()
17  0x70e27710265d WebCore::Document::updateLayout(WTF::OptionSet<WebCore::LayoutOptions>, WebCore::Element const*)
18  0x70e27714e67f WebCore::Element::boundingClientRect()
19  0x70e27714ea25 WebCore::Element::getBoundingClientRect()
20  0x70e2755247b1 WebCore::jsElementPrototypeFunction_getBoundingClientRect(JSC::JSGlobalObject*, JSC::CallFrame*)
21  0x70e21c810038 ???

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