Acid3 expects document.firstChild to be a DocType node http://www.hixie.ch/tests/evil/acid/003/NOT_READY_PLEASE_DO_NOT_USE.html We pass all parts of 33 except for this check: (document.firstChild.nodeType == 10)) // doctype function () { // test 33: nodeType (this test also relies on accurate parsing of the document) if ((document.nodeType == 9) && // document (document.documentElement.nodeType == 1) && // element (document.createAttribute('test').nodeType == 2) && // attribute (document.getElementById('score').firstChild.nodeType == 3) && // test node (document.firstChild.nodeType == 10)) // doctype return 3; },
NOT_READY_PLEASE_DO_NOT_USE *** This bug has been marked as a duplicate of 12751 ***