Tests: Disable the ":lang respects escaped backslashes" test #5277
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Summary
Firefox 114+ no longer match on backslashes in
:lang()
, even when escaped. It is an intentional change as:lang()
parameters are supposed to be valid BCP 47 strings. Therefore, we won't attempt to patch it. We'll keep this test here until other browsers match the behavior.Fixes gh-5271
Ref https://bugzilla.mozilla.org/show_bug.cgi?id=1839747#c1 Ref w3c/csswg-drafts#8720 (comment)
Checklist
New tests have been added to show the fix or feature worksIf needed, a docs issue/PR was created at https://github.com/jquery/api.jquery.com