slot-fallback-content-003.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /shadow-dom/slot-fallback-content-003.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<meta charset="utf-8" >

<meta name="author" title="Di Zhang" href="mailto:dizhangg@chromium.org">

<meta name="assert" content="Modify slot fallback contents, when dynamically created.">

<title>Shadow DOM: Slots and fallback contents</title>

<link rel="match" href="slot-fallback-content-003-ref.html">

<p>Test passes if there are two lines of text "SLOT1", "A" below.</p>

<div id="host1"><slot id="slot1">SLOT1</slot></div>

<p>Test passes if there is one line of text "C" below.</p>

<div id="host2"><slot id="slot2">

  <div id="B">FAIL</div>

  <div id="C">C</div>

</slot></div>

<p>Test passes if empty.</p>

<div id="host3">

  <slot id="slot3">

    <div id="D">FAIL</div>

  </slot>

</div>

<script>

// Content added to existing fallback content will be rendered

const shadowRoot1 = host1.attachShadow({ mode: "open" });

shadowRoot1.appendChild(slot1);

const A = document.createElement('div');

A.innerText = 'A';

shadowRoot1.getElementById('slot1').appendChild(A);

// Remove some content from existing slot fallback will render the leftover fallback

const shadowRoot2 = host2.attachShadow({ mode: "open" });

shadowRoot2.appendChild(slot2);

const B = shadowRoot2.getElementById('B');

B.remove();

// // Remove all content from existing slot fallback will render no fallback

const shadowRoot3 = host3.attachShadow({ mode: "open" });

shadowRoot3.appendChild(slot3);

const D = shadowRoot3.getElementById('D');

D.remove();

</script>