srcdoc-attribute-reset.html

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This WPT test may be referenced by the following Test IDs:
- /html/semantics/embedded-content/the-iframe-element/srcdoc-attribute-reset.html - WPT Dashboard Interop Dashboard

<title>Verify that clearing srcdoc resets the iframe's content.</title>

<link rel="help" href="https://html.spec.whatwg.org/multipage/iframe-embed-object.html#process-the-iframe-attributes">

<link rel="author" title="James MacLean" href="mailto:wjmaclean@chromium.org">

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

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

<iframe id=myframe srcdoc='srcdoc_text'></iframe>

<script>

  'use strict';

  async_test(function(t) {

    window.onload = () => {

      // Verify that the srcdoc content is loaded before we start.

      t.step(() => {

        assert_true(typeof myframe.contentDocument !== 'undefined',

            'iframe has contentDocument');

        assert_equals(myframe.contentDocument.body.innerText, 'srcdoc_text',

            'iframe contains srcdoc content');

});

      myframe.onload = t.step_func_done(function() {

        assert_true(typeof myframe.contentDocument !== 'undefined',

            'iframe has contentDocument');

        assert_equals(myframe.contentDocument.body.innerText, '',

            'iframe content is empty');

});

      // Don't remove srcdoc until the initial load has completed, and the

      // frame's onload handler is in place.

      myframe.removeAttribute('srcdoc');

};

  }, 'Verify that the frame reloads with empty body after we remove srcdoc.');

</script>