User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0 Build ID: 20121024073032 Steps to reproduce: Check the state of table.insertRow Actual results: MDN says index is required: https://developer.mozilla.org/en-US/docs/DOM/table.insertRow And Firefox 17 does require it. Expected results: HTML5 standard says index is optional: http://www.w3.org/TR/html5/tabular-data.html And it is optional in Chrome and IE.
Spec: <http://www.whatwg.org/specs/web-apps/current-work/multipage/tabular-data.html#htmltableelement>. It's probably easiest to wait until we move HTMLTableElement to WebIDL; Peter, do you have an idea about the timeframe for that?
Also HTMLTableSectionElement.insertRow, HTMLTableRowElement.insertCell. All default to -1.
Mentioned on: https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/20#DOM Updated: https://developer.mozilla.org/en-US/docs/DOM/table.insertRow https://developer.mozilla.org/en-US/docs/DOM/tableRow.insertCell
or
