Closed
Bug 1223694
Opened 9 years ago
Closed 9 years ago
"Assertion failure: mStyleScopes.Contains(cur)"
Categories
(Core :: CSS Parsing and Computation, defect)
Core
CSS Parsing and Computation
Tracking
()
RESOLVED
FIXED
mozilla45
| Tracking | Status | |
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| firefox45 | --- | fixed |
People
(Reporter: jruderman, Assigned: heycam)
References
Details
(Keywords: assertion, testcase)
Attachments
(3 files)
Assertion failure: mStyleScopes.Contains(cur), at layout/style/nsCSSRuleProcessor.cpp:4132
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Reporter | |
Comment 1•9 years ago
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Assignee | |
Comment 2•9 years ago
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We're creating a <style scoped> as a child of the document element. The document element has native anonymous content -- the <scrollbar>, which we're restyling). The <scrollbar> doesn't have the IsElementInStyleScope flag set. Thus when we call InitStyleScopes:
https://dxr.mozilla.org/mozilla-central/rev/84a7cf29f4f14c9b359db2f7f19c0abd6a8e178e/layout/style/nsStyleSet.cpp#1339
we think we can skip looking up to find the ancestors that are IsElementInStyleScope(), and we assert that <html> isn't in our TreeMatchContext::mStyleScopes.
Since document style sheets shouldn't apply to native anonymous content anyway, I think we can just skip the assertion if aElement->IsInNativeAnonymousSubtree().
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Assignee | |
Comment 3•9 years ago
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Updated•9 years ago
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Attachment #8686338 -
Flags: review?(dbaron) → review+
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Comment 6•9 years ago
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| bugherder | ||
Status: ASSIGNED → RESOLVED
Closed: 9 years ago
Resolution: --- → FIXED
Target Milestone: --- → mozilla45
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Description
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