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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>
<!-- The onclick submit() should get superseded by the default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>
let frame1 = document.getElementById('frame1');
let frame2 = document.getElementById('frame2');
let form1 = document.getElementById('form1');
let submitbutton = document.getElementById('submitbutton');
async_test(t => {
window.addEventListener('load', () => {
frame1.addEventListener('load', t.step_func_done(() => {
assert_unreached("Frame1 should not get navigated by this test.");
}));
frame2.addEventListener('load', t.step_func_done(() => {
let params = (new URL(frame2.contentWindow.location)).searchParams;
let wasNavigated = !!params.get("navigated");
assert_true(wasNavigated)
}));
form1.addEventListener('click', t.step_func(() => {
form1.submit();
form1.target='frame2';
}));
submitbutton.click();
});
}, 'default submit action should supersede onclick submit()');
</script>
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