Content - 7948c18a2efcc6c02d76f683a3dbb5fa2558c8ae - c2dfe6b/xhr/access-control-preflight-sync-header-denied.htm

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Tip revision: 2d5617d6fa633bdad0309f369ea1e96b259957d8 authored by Simon Pieters on 15 May 2018, 14:06:25 UTC
Add a warning and a link to issue

Tip revision: 2d5617d

access-control-preflight-sync-header-denied.htm

<!DOCTYPE html>
<html>
  <head>
    <title>Sync request denied at preflight because of non-CORS-safelisted header</title>
    <script src="/resources/testharness.js"></script>
    <script src="/resources/testharnessreport.js"></script>
    <script src="/common/get-host-info.sub.js"></script>
    <script src="/common/utils.js"></script>
  </head>
  <body>
    <script type="text/javascript">
const uuid = token();
const url = get_host_info().HTTP_REMOTE_ORIGIN +
    "/xhr/resources/access-control-preflight-denied.py?token=" + uuid;

test(() => {
  let xhr = new XMLHttpRequest;
  xhr.open("GET", url + "&command=reset", false);
  xhr.send();

  xhr = new XMLHttpRequest;
  xhr.open("GET", url + "&command=header", false);
  xhr.setRequestHeader("x-test", "foo");

  assert_throws("NetworkError", () => xhr.send());

  xhr = new XMLHttpRequest;
  xhr.open("GET", url + "&command=complete", false);
  xhr.send();
  assert_equals(xhr.responseText, "Request successfully blocked.");
}, "Sync request denied at preflight");
    </script>
  </body>
</html>

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