tor-browser

The Tor Browser
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textarea-validity-clone.html (1005B)

      1 <!doctype html>
      2 <meta charset="utf-8">
      3 <title>HTML Test: &lt;textarea&gt; validity state is correct after a clone</title>
      4 <link rel="author" title="Emilio Cobos Álvarez" href="mailto:emilio@crisal.io">
      5 <link rel="help" href="https://html.spec.whatwg.org/multipage/#the-textarea-element">
      6 <link rel="help" href="https://bugzil.la/1472169">
      7 <script src="/resources/testharness.js"></script>
      8 <script src="/resources/testharnessreport.js"></script>
      9 <script>
     10 test(function() {
     11  let form = document.createElement("form");
     12  let textarea = document.createElement("textarea");
     13  textarea.required = true;
     14 
     15  textarea.appendChild(document.createTextNode("A"));
     16  form.appendChild(textarea);
     17 
     18  assert_true(textarea.validity.valid);
     19 
     20  let formClone = form.cloneNode(true);
     21  assert_equals(
     22    formClone.querySelector('textarea').validity.valid,
     23    textarea.validity.valid,
     24    "Validity state should be preserved after a clone"
     25  );
     26 }, "<textarea> validity state should be preserved after a clone");
     27 </script>