1 files changed, 22 insertions, 0 deletions
diff --git a/testing/web-platform/tests/accessibility/crashtests/computed-accessible-child-of-pseudo-element.html b/testing/web-platform/tests/accessibility/crashtests/computed-accessible-child-of-pseudo-element.html
new file mode 100644
index 0000000000..5bc1249907
--- /dev/null
+++ b/testing/web-platform/tests/accessibility/crashtests/computed-accessible-child-of-pseudo-element.html
@@ -0,0 +1,22 @@
+<html class="test-wait">
+<style>
+  h1::before { content: " [before] "; display: table; }
+</style>
+
+<h1>Heading</h1>
+
+<script>
+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();
+</script>
+</html>