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-rw-r--r--dom/animation/test/crashtests/1633486.html20
1 files changed, 20 insertions, 0 deletions
diff --git a/dom/animation/test/crashtests/1633486.html b/dom/animation/test/crashtests/1633486.html
new file mode 100644
index 0000000000..20b88f6327
--- /dev/null
+++ b/dom/animation/test/crashtests/1633486.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<html>
+<head>
+ <script>
+ window.addEventListener('load', async () => {
+ const element = document.getElementById('target');
+ element.animate({
+ 'all': ['initial']
+ }, {
+ 'duration': 500,
+ 'pseudoElement': '::marker',
+ })
+ element.hidden = false;
+ })
+ </script>
+</head>
+<ul>
+ <li id='target' hidden></li>
+</ul>
+</html>