[whatwg] Form data append behavior on null type

[Tingan Ho]

Wouldn't it be good to specify the behavior of type null in *append* method
of Form data?

Right now Safari sends string* "null".* Chrome sends empty string "". I
think Chrome's implementation is more right, because in a html form you
can't send null value, just empty strings

http://www.w3.org/TR/XMLHttpRequest2/#the-append-method

-- 
Sincerely,

Tingan Ho
tingan at p1.cn