tor-browser

The Tor Browser
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Node-appendChild-script-and-div-from-fragment.tentative.html (954B)


      1 <!doctype html>
      2 <meta charset=utf-8>
      3 <title>Node.appendChild: inserting script and div from a DocumentFragment</title>
      4 <script src=/resources/testharness.js></script>
      5 <script src=/resources/testharnessreport.js></script>
      6 <body>
      7 <script>
      8 let script = null;
      9 let scriptParent = null;
     10 let div = null;
     11 let divParent = null;
     12 test(() => {
     13  script = document.createElement("script");
     14  div = document.createElement("div");
     15  script.textContent = `
     16    divParent = div.parentNode;
     17    scriptParent = script.parentNode;
     18  `;
     19  const df = document.createDocumentFragment();
     20  df.appendChild(script);
     21  df.appendChild(div);
     22  assert_equals(divParent, null);
     23  assert_equals(scriptParent, null);
     24  document.head.appendChild(df);
     25  assert_equals(divParent, scriptParent);
     26  assert_equals(divParent, document.head);
     27 }, "Earlier-inserted scripts can observe the parentNode of later-inserted " +
     28   "nodes, because script runs after DOM insertion completes");
     29 </script>