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<!DOCTYPE html>
<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
test(t => {
var i = document.createElement('iframe');
assert_equals('', i.csp);
assert_true('csp' in i);
assert_equals('string', typeof i.csp);
}, "<iframe> has a 'csp' attibute which is an empty string if undefined.");
test(t => {
var i = document.createElement('iframe');
i.setAttribute('csp', 123456);
assert_equals('123456', i.csp);
}, "<iframe>'s csp attribute is always a string.");
test(t => {
var i = document.createElement('iframe');
i.csp = 'value';
assert_equals('value', i.getAttribute('csp'));
}, "<iframe>'s 'csp content attribute reflects the IDL attribute.");
test(t => {
var i = document.createElement('iframe');
i.setAttribute('csp', 'value');
assert_equals('value', i.csp);
}, "<iframe>'s IDL attribute reflects the DOM attribute.");
</script>
</body>
</html>
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