File: iframe-csp-attribute.html

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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>