Element-toggleAttribute.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /trusted-types/Element-toggleAttribute.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<head>

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

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

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

</head>

<body>

<div>

  <p id="p" onclick="alert(1)"></p>

  <iframe id="iframe" srcdoc="abc"></iframe>

</div>

<script>

  // Regression test for crbug.com/341057803.

  // This tests that TT doesn't interfere with regular DOM behaviour, and so

  // these tests should pass on any browser, whether they support TT or not.

  test(t => {

    const elem = document.getElementById("p");

    elem.toggleAttribute("onclick");

    assert_false(elem.hasAttribute("onclick"));

    elem.toggleAttribute("onclick");

    assert_true(elem.hasAttribute("onclick"));

  }, "TT should not interfere with toggleAttribute on an event handler");

  test(t => {

    const elem = document.getElementById("iframe");

    elem.toggleAttribute("srcdoc");

    assert_false(elem.hasAttribute("srcdoc"));

    elem.toggleAttribute("srcdoc");

    assert_true(elem.hasAttribute("srcdoc"));

  }, "TT should not interfere with toggleAttribute on an iframe srcdoc");

</script>

</body>