diff --git a/layout/generic/crashtests/225868-1-inner.html b/layout/generic/crashtests/225868-1-inner.html
new file mode 100644
index 000000000000..db8fbc73c949
--- /dev/null
+++ b/layout/generic/crashtests/225868-1-inner.html
@@ -0,0 +1,14 @@
+<html>
+<head>
+<style type="text/css">
+
+html { overflow: hidden; }
+
+</style>
+</head>
+<body onload="setTimeout(function(){document.write('<body onload=&quot;parent.document.documentElement.removeAttribute(\'class\');&quot;>2</body>'); document.close();}, 0);">
+
+1
+
+</body>
+</html>
diff --git a/layout/generic/crashtests/225868-1.html b/layout/generic/crashtests/225868-1.html
new file mode 100644
index 000000000000..55f221a7ccc5
--- /dev/null
+++ b/layout/generic/crashtests/225868-1.html
@@ -0,0 +1,7 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head></head>
+<body>
+<iframe src="225868-1-inner.html"></iframe>
+</body>
+</html>
diff --git a/layout/generic/crashtests/crashtests.list b/layout/generic/crashtests/crashtests.list
index 221a79d48f88..719be4f06331 100644
--- a/layout/generic/crashtests/crashtests.list
+++ b/layout/generic/crashtests/crashtests.list
@@ -1,3 +1,4 @@
+load 225868-1.html
 load 302260-1.html
 load 307979-1.html
 load 310556-1.xhtml
