jsurl-navigation-then-form-submit.html

<!DOCTYPE html>
<meta charset="utf-8">
<link rel="author" title="Joey Arhar" href="mailto:[email protected]">

<!-- The expected behavior of this test is not explicitly specified. -->

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>

<script>
async_test(t => {
  window.onload = t.step_func(() => {
    const iframe = document.createElement('iframe');
    iframe.name = 'myframe';

    iframe.onload = t.step_func_done(() => {
      assert_equals(iframe.contentDocument.location.pathname, '/formaction.html');
    });

    const form = document.createElement('form');
    form.target = iframe.name;
    form.action = '/formaction.html';
    document.body.appendChild(form);

    iframe.src = 'javascript:false';
    document.body.appendChild(iframe);
    form.submit();
  });
}, 'Verifies that form submissions cancel javascript navigations to prevent duplicate load events.');
</script>

chromium/third_party/blink/web_tests/external/wpt/html/semantics/forms/form-submission-0/jsurl-navigation-then-form-submit.html