tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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ShadowRoot-init-declarative.html (1050B)

      1 <!doctype html>
      2 <title>Scoped Custom Element Registries: declarative shadow root</title>
      3 <script src="/resources/testharness.js"></script>
      4 <script src="/resources/testharnessreport.js"></script>
      5 <div id="host">
      6  <template shadowrootmode="open" shadowrootcustomelementregistry>
      7    <custom-element></custom-element>
      8    <div></div>
      9  </template>
     10 </div>
     11 <script>
     12 test(() => {
     13  const customElement = host.shadowRoot.firstElementChild;
     14  assert_equals(customElement.customElementRegistry, null);
     15  customElement.attachShadow({
     16    mode: "open"
     17  });
     18  assert_equals(customElement.shadowRoot.customElementRegistry, null);
     19 }, "Custom element inside 'shadowrootcustomelementregistry' declarative shadow root");
     20 
     21 test(() => {
     22  const divElement = host.shadowRoot.lastElementChild;
     23  assert_equals(divElement.customElementRegistry, null);
     24  divElement.attachShadow({
     25    mode: "open"
     26  });
     27  assert_equals(divElement.shadowRoot.customElementRegistry, null);
     28 }, "Built-in element inside 'shadowrootcustomelementregistry' declarative shadow root");
     29 </script>