
PASS autonomous: document.createElementNS should create custom elements with prefixes. 
PASS autonomous: document.createElementNS should check namespaces. 
PASS autonomous: document.createElementNS should not create HTMLUnknownElement for a valid custom element name 
PASS autonomous: document.createElementNS with undefined options value should be upgraded. 
FAIL builtin: document.createElementNS should create custom elements with prefixes. assert_true: expected true got false
PASS builtin: document.createElementNS should check namespaces. 
FAIL document.createElementNS()'s third argument is to be ignored when it's a string assert_true: expected true got false