Test for bug 5924 - zero-length responses to XMLHTTPRequest mishandled.
after creation: Uninitialized
Status: 0
StatusText: ""
ResponseText: ""
ResponseXML: null
ResponseXML serialized: n/a
after setting onreadystatechange: Uninitialized
onreadystatechange: Open
Status: 0
StatusText: ""
ResponseText: ""
ResponseXML: null
ResponseXML serialized: n/a
after open(): Open
Status: 0
StatusText: ""
ResponseText: ""
ResponseXML: null
ResponseXML serialized: n/a
after overrideMimeType(): Open
after send(): Open
onreadystatechange: Sent
Status: 200
StatusText: "OK"
ResponseText: ""
ResponseXML: null
ResponseXML serialized: n/a
onreadystatechange: Loaded
Status: 200
StatusText: "OK"
ResponseText: ""
ResponseXML: null
ResponseXML serialized: n/a