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Fix checking for empty set for getElementsByClassName
Because empty set with `.all(predicate)` will always return `true`, it will result in always filtering wrong elements when the classes is empty set. Thus, we return earlier with `always_empty` HTMLCollection in the mpety classes case so that we can avoid filtering on empty sets.
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2 changed files with 6 additions and 10 deletions
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[getElementsByClassName-empty-set.html]
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[Passing a space to getElementsByClassName should return an empty HTMLCollection]
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expected: FAIL
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[Passing three spaces to getElementsByClassName should return an empty HTMLCollection]
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expected: FAIL
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[Passing an empty string to getElementsByClassName should return an empty HTMLCollection]
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expected: FAIL
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