Open
Bug 1411798
Opened 8 years ago
Updated 3 years ago
Web Console Shows CSS Errors for Unrecognized Properties in @supports Rules
Categories
(Core :: CSS Parsing and Computation, defect, P3)
Tracking
()
UNCONFIRMED
People
(Reporter: bugzilla-2, Unassigned)
References
Details
Attachments
(1 file)
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414 bytes,
application/xhtml+xml
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Details |
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20171023180840
Steps to reproduce:
1. View a page with a stylesheet that declares a single |@supports| at-rule with a single unsupported CSS property (such as |margin-block|).
2. Open the Web Console (Ctrl+Shift+K).
3. Make sure CSS errors are visible.
Actual results:
Firefox 56.0.1: No errors are shown in the console.
Firefox 57.0b11: One error is shown in the console (e.g., “Unknown property ‘margin-block’. Declaration dropped.”)
Expected results:
No errors should be shown in the console.
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Reporter | |
Comment 1•8 years ago
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Updated•8 years ago
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Component: Untriaged → CSS Parsing and Computation
Product: Firefox → Core
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Updated•8 years ago
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Priority: -- → P3
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Comment 2•8 years ago
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Hmmm... looks like we don't suppress parse errors in @supports for Stylo. We should do something similar like Bug 807336 did for old style system [1] I think.
[1] https://searchfox.org/mozilla-central/rev/bab833ebeef6b2202e71f81d225b968283521fd6/layout/style/nsCSSParser.cpp#4440-4442
See Also: → 807336
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Updated•3 years ago
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Severity: normal → S3
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Description
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