1 files changed, 37 insertions, 0 deletions
diff --git a/dom/animation/test/crashtests/1524480-1.html b/dom/animation/test/crashtests/1524480-1.html
new file mode 100644
index 0000000000..89e5a412d9
--- /dev/null
+++ b/dom/animation/test/crashtests/1524480-1.html
@@ -0,0 +1,37 @@
+<!doctype html>
+<html class="reftest-wait">
+<meta charset=utf-8>
+<style>
+div {
+  display: none;
+  width: 100px;
+  height: 100px;
+  background: blue;
+}
+</style>
+<div id=div></div>
+<script>
+async function test() {
+  const animation = div.animate({ transform: ['none', 'none'] }, 1000);
+  animation.cancel();
+
+  await waitForFrame();
+
+  div.style.display = 'block';
+
+  await waitForFrame();
+  await waitForFrame();
+
+  animation.play();
+  await animation.finished;
+
+  document.documentElement.className = "";
+}
+
+function waitForFrame() {
+  return new Promise(resolve => requestAnimationFrame(resolve));
+}
+
+test();
+</script>
+</html>