computed-accessible-child-of-pseudo-element.html

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This WPT test may be referenced by the following Test IDs:
- /accessibility/crashtests/computed-accessible-child-of-pseudo-element.html - WPT Dashboard Interop Dashboard

<html class="test-wait">

<style>

  h1::before { content: " [before] "; display: table; }

</style>

<h1>Heading</h1>

<script>

// Bypass this abandoned syntax in all but the engines that implement it.

if (typeof getComputedAccessibleNode !== 'undefined') {

  async function trigger1() {

    let heading = document.querySelector('h1');

    let computed_accessible_node = await self.getComputedAccessibleNode(heading);

    let first_child = computed_accessible_node.firstChild;

    // The first child of the heading is a pseudo element <table>.

    await first_child.ensureUpToDate();

    // The next child down has an accessibility object but no node.

    let grand_child = first_child.firstChild;

    await grand_child.ensureUpToDate();

    document.documentElement.className = '';

  trigger1();

} else {

  // Pass in other engines that have not implemented the abandoned API

  document.documentElement.className = '';

</script>

</html>