   else
     xhrSend.apply @, arguments
 
+
+XMLHttpRequest::open = (method, url) ->
+  xhrOpen.apply @, arguments unless url?[...5] is 'blob:'
 
 
 FormData::append = (key, val, filename) ->

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


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

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


