 cleaned    = {}
 frMethods  = {}
 xhrSend    = XMLHttpRequest::send
+xhrOpen    = XMLHttpRequest::open
 fdAppend   = FormData::append
 formSubmit = HTMLFormElement::submit
 

        xhr.onerror = ->
          reportErr 'Something went wrong submitting the upload form.', cleaned

        xhr.open form.getAttribute('method') or 'GET', action
        xhrSend.call xhr, formData



  else
    xhrSend.apply @, arguments


XMLHttpRequest::open = (method, url) ->
  xhrOpen.apply @, arguments unless url?[...5] is 'blob:'


FormData::append = (key, val, filename) ->
