1 files changed, 28 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-animations/keyframes-remove-documentElement-crash.html b/testing/web-platform/tests/css/css-animations/keyframes-remove-documentElement-crash.html
new file mode 100644
index 0000000000..9573ce1b0f
--- /dev/null
+++ b/testing/web-platform/tests/css/css-animations/keyframes-remove-documentElement-crash.html
@@ -0,0 +1,28 @@
+<!doctype html>
+<html class="test-wait">
+<title>CSS Animations Test: Chrome crash when removing documentElement and @keyframes stylesheet</title>
+<link rel="help" href="https://crbug.com/999522">
+<style>
+  @keyframes anim {
+    from { color: pink }
+    to { color: purple }
+  }
+  div {
+    animation: notfound 1s;
+  }
+</style>
+<div></div>
+<script>
+window.addEventListener('load', () => {
+  document.body.offsetTop;
+  document.querySelector("style").remove();
+  // We need the root later to remove the test-wait class.
+  const root = document.documentElement;
+  document.documentElement.remove();
+
+  // rAF to make sure that style runs.
+  requestAnimationFrame(() => {
+    root.classList.remove('test-wait');
+  });
+});
+</script>