third_party/web_platform_tests/XMLHttpRequest/send-entity-body-document-bogus.htm

<!doctype html>
<html>
  <head>
    <title>XMLHttpRequest: send() - unserializable Document</title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <link rel="help" href="https://xhr.spec.whatwg.org/#dom-XMLHttpRequest-send-document" data-tested-assertations="following::p[3]" />
  </head>
  <body>
    <div id="log"></div>
    <script>
      function request_throws(input) {
        test(function() {
          var client = new XMLHttpRequest()
          client.open("POST", "resources/content.py", false)
          assert_throws("InvalidStateError", function() { client.send(input) })
        })
      }
      var doc = document.implementation.createDocument(null, null, null)
      while(doc.childNodes.length) {
        doc.removeChild(doc.childNodes[0])
      }
      request_throws(doc)
    </script>
  </body>
</html>