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<!DOCTYPE html>
<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<meta http-equiv="Content-Security-Policy" content="form-action 'self'">
</head>
<body>
<form action='/content-security-policy/support/postmessage-pass-to-opener.html'
id='form_id'
target="_blank"
rel="opener">
</form>
<p>
Test that "form-action 'self'" works correctly when the form uses
target="_blank". If this test passes, a new window must open after pressing
"submit".
</p>
</body>
<script>
async_test(t => {
document.addEventListener('securitypolicyviolation', function(e) {
t.unreached_func("Form submission was blocked.");
});
window.addEventListener('message', function(event) {
t.done();
})
window.addEventListener("load", function() {
document.getElementById("form_id").submit();
});
}, "The form submission should not be blocked by the iframe's CSP.");
</script>
</html>
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