XMLHttpRequest/data-uri.htm

<!doctype html>
<meta charset=utf-8>
<title>XMLHttpRequest: data URLs</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<div id="log"></div>

<script>
  function do_test(method, url, mimeType, testNamePostfix) {
    if (typeof mimeType === 'undefined' || mimeType === null) mimeType = 'text/plain';
    var test = async_test("XHR method " + method + " with MIME type " + mimeType + (testNamePostfix||''));
    test.step(function() {
      var client = new XMLHttpRequest(),
          body = method === "HEAD" ? "" : "Hello, World!";
      client.onreadystatechange = test.step_func(function () {
        if (client.readyState !== 4) {
          return;
        }
        assert_equals(client.responseText, body);
        assert_equals(client.status, 200);
        assert_equals(client.getResponseHeader('Content-Type'), mimeType);
        var allHeaders = client.getAllResponseHeaders();
        assert_regexp_match(allHeaders, /content\-type\:/i, 'getAllResponseHeaders() includes Content-Type');
        assert_false(/content\-length\:/i.test(allHeaders), 'getAllResponseHeaders() must not include Content-Length');
        test.done();
      });
      client.open(method, url);
      client.send(null);
    });
  }
  do_test('GET', "data:text/plain,Hello, World!");
  do_test('GET', "data:text/plain;base64,SGVsbG8sIFdvcmxkIQ==", undefined, " (base64)");
  do_test('GET', "data:text/html,Hello, World!", 'text/html');
  do_test('GET', "data:text/html;charset=UTF-8,Hello, World!", 'text/html;charset=UTF-8');
  do_test('GET', "data:image/png,Hello, World!", 'image/png');
  do_test('POST', "data:text/plain,Hello, World!");
  do_test('PUT', "data:text/plain,Hello, World!");
  do_test('DELETE', "data:text/plain,Hello, World!");
  do_test('HEAD', "data:text/plain,Hello, World!");
  do_test('UNICORN', "data:text/plain,Hello, World!");
</script>