1 Test that XMLSerializer quotes the attribute characters specified in the W3C spec.
3 On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
6 PASS htmlElement.outerHTML is "<div quoteme=\"< > & " ' \"></div>"
7 PASS (new XMLSerializer()).serializeToString(xmlElement) is "<div xmlns=\"http://www.w3.org/1999/xhtml\" quoteme=\"< > & " ' \xA0\"></div>"
8 PASS successfullyParsed is true