From http://crbug.com/33062: Given the following JavaScript: var x = new XMLHttpRequest(); x.open('POST', '/'); x.send(undefined); Expected result is: POST request with empty request body. Instead chromium sends "undefined" as the request body.
Created attachment 51454 [details] Proposed fix.
Comment on attachment 51454 [details] Proposed fix. r=me
Committed as http://trac.webkit.org/changeset/56422