HTML XML Lang Mismatch

Checks that lang and xml:lang attributes match on html element


Rule ID	`a11y/html-xml-lang-mismatch`
Category	Accessibility
Scope	Per-page
Severity	error
Weight	6/10

Solution

If both lang and xml:lang are present on the <html> element, they must have the same base language. Mismatches can cause screen readers to announce content in the wrong language. Typically, you only need lang for HTML5 documents.

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squirrel.toml

toml

[rules]
disable = ["a11y/html-xml-lang-mismatch"]

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squirrel.toml

toml

[rules]
disable = ["a11y/*"]

Enable only this rule

squirrel.toml

toml

[rules]
enable = ["a11y/html-xml-lang-mismatch"]
disable = ["*"]

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