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<!DOCTYPE html>
<meta charset="utf-8">
<link rel="author" href="mailto:masonf@chromium.org">
<link rel="help" href="https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#form-submission-algorithm">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/common/get-host-info.sub.js"></script>
<!-- The onclick submit() should get superseded by the default
action submit(), which isn't preventDefaulted by onclick here.
This is per the Form Submission Algorithm [1], step 22.3, which
says that new planned navigations replace old planned navigations.
[1] https://html.spec.whatwg.org/multipage/form-control-infrastructure.html#form-submission-algorithm
-->
<label for=frame1 style="display:block">This frame should stay blank</label>
<iframe name=frame1 id=frame1></iframe>
<label for=frame2 style="display:block">This frame should navigate (to 404)</label>
<iframe name=frame2 id=frame2></iframe>
<form id="form1" target="frame1" action="nonexistent.html">
<input type=hidden name=navigated value=1>
<input id=submitbutton type=submit>
</form>
<script>
promise_test(async () => {
function getLoadPromise(frame) {
return new Promise(resolve => {
frame.addEventListener('load', resolve);
});
}
const frame1 = document.getElementById('frame1');
const frame2 = document.getElementById('frame2');
await getLoadPromise(window);
const frame1LoadPromise = getLoadPromise(frame1);
let frame2LoadPromise = getLoadPromise(frame2);
const subframeUrl = get_host_info().REMOTE_ORIGIN;
frame1.src = subframeUrl;
frame2.src = subframeUrl;
await frame1LoadPromise;
await frame2LoadPromise;
assert_false(!!frame1.contentDocument, 'frame1 should have a different origin.');
assert_false(!!frame2.contentDocument, 'frame2 should have a different origin.');
window.frame1Navigated = false;
frame1.addEventListener('load', () => {
window.frame1Navigated = true;
});
frame2LoadPromise = getLoadPromise(frame2);
form1.addEventListener('click', () => {
form1.submit();
form1.target = 'frame2';
});
submitbutton.click();
await frame2LoadPromise;
assert_false(window.frame1Navigated, 'frame1 should not be navigated by the form submission.');
}, 'default submit action should supersede onclick submit() for cross-origin iframes');
</script>
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