block-string-assignment-to-Element-outerHTML.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /trusted-types/block-string-assignment-to-Element-outerHTML.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

<head>

  <script src="/resources/testharness.js"></script>

  <script src="/resources/testharnessreport.js"></script>

  <script src="support/helper.sub.js"></script>

  <meta http-equiv="Content-Security-Policy" content="require-trusted-types-for 'script';">

</head>

<body>

<div id="container"></div>

<script>

  var container = document.querySelector('#container')

  // TrustedHTML assignments do not throw.

  test(t => {

    let p = createHTML_policy(window, 1);

    let html = p.createHTML(INPUTS.HTML);

    var d = document.createElement('div');

    document.querySelector('#container').appendChild(d);

    d.outerHTML = html;

    assert_equals(container.innerText, RESULTS.HTML);

    while (container.firstChild)

      container.firstChild.remove();

  }, "outerHTML with html assigned via policy (successful HTML transformation).");

  test(t => {

    let p = createHTML_policy(window, 1);

    assert_throws_dom("NoModificationAllowedError", _ => {

      document.documentElement.outerHTML = p.createHTML('<p>Content</p>');

});

  }, "`outerHTML = TrustedHTML` throws NoModificationAllowedError when parent is a document.");

  // String assignments throw.

  test(t => {

    var d = document.createElement('div');

    container.appendChild(d);

    assert_throws_js(TypeError, _ => {

      d.outerHTML = "Fail.";

});

    assert_equals(container.innerText, "");

    while (container.firstChild)

      container.firstChild.remove();

  }, "`outerHTML = string` throws.");

  test(t => {

    assert_throws_js(TypeError, _ => {

      document.documentElement.outerHTML = '<p>Content</p>';

});

  }, "`outerHTML = string` throws TypeError even when parent is a document.");

  // Null assignment throws.

  test(t => {

    var d = document.createElement('div');

    container.appendChild(d);

    assert_throws_js(TypeError, _ => {

      d.outerHTML = null;

});

    assert_equals(container.innerText, "");

    while (container.firstChild)

      container.firstChild.remove();

  }, "`outerHTML = null` throws.");

  // After default policy creation string assignment implicitly calls createHTML.

  test(t => {

    let p = window.trustedTypes.createPolicy("default", { createHTML: createHTMLJS }, true);

    var d = document.createElement('div');

    document.querySelector('#container').appendChild(d);

    d.outerHTML = INPUTS.HTML;

    assert_equals(container.innerText, RESULTS.HTML);

    while (container.firstChild)

      container.firstChild.remove();

  }, "`outerHTML = string` assigned via default policy (successful HTML transformation).");

  // After default policy creation null assignment implicitly calls createHTML.

  test(t => {

    var d = document.createElement('div');

    container.appendChild(d);

    d.outerHTML = null;

    assert_equals(container.innerText, "");

    while (container.firstChild)

      container.firstChild.remove();

  }, "`outerHTML = null` assigned via default policy does not throw");

</script>

</body>

</html>