diff --git a/layout/style/crashtests/1486536.html b/layout/style/crashtests/1486536.html
new file mode 100644
index 000000000000..4b2828376922
--- /dev/null
+++ b/layout/style/crashtests/1486536.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <script>
+  function start () {
+    try { o1 = document.createElement('div') } catch (e) {}
+    try { document.writeln('') } catch (e) {}
+    try { document.appendChild(o1) } catch (e) {}
+    try { document.write('>') } catch (e) {}
+  }
+  document.addEventListener('DOMContentLoaded', start)
+  </script>
+</head>
+</html>
diff --git a/layout/style/crashtests/crashtests.list b/layout/style/crashtests/crashtests.list
index ef4e51d4474c..b5cbc288cb5f 100644
--- a/layout/style/crashtests/crashtests.list
+++ b/layout/style/crashtests/crashtests.list
@@ -292,3 +292,4 @@ pref(dom.webcomponents.shadowdom.enabled,true) load 1468640.html
 load 1469076.html
 load 1475003.html
 load 1479681.html
+load 1486536.html
