
PASS Empty string as a name for Document.getElementsByTagName 
PASS Empty string as a name for Element.getElementsByTagName 
PASS Empty string as a name for Document.getElementsByTagNameNS 
PASS Empty string as a name for Element.getElementsByTagNameNS 
PASS Empty string as a name for Document.getElementsByClassName 
PASS Empty string as a name for Element.getElementsByClassName 
PASS Empty string as a name for Element.children