1 files changed, 38 insertions, 0 deletions
diff --git a/layout/reftests/bugs/459443-1.html b/layout/reftests/bugs/459443-1.html
new file mode 100644
index 0000000000..c2d6412296
--- /dev/null
+++ b/layout/reftests/bugs/459443-1.html
@@ -0,0 +1,38 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+  <body onload="loaded()">
+    <iframe id="foo"></iframe> 
+    <script type="text/javascript">
+    function loaded() {
+        dump("459443-1.html: Entering loaded()\n");
+        var n = document.getElementById('foo');
+
+        // Just to detect if/when the iframe might be firing its load event
+        // before we set up its final className-clearing load event handler:
+        n.addEventListener("load",
+                           function() {
+                               dump("459443-1.html: Entering n initial " +
+                                    "no-op load callback\n");});
+
+        var f = n.contentWindow;
+        f.document.open();
+        f.document.write('');
+        f.onload = function() {
+          dump("459443-1.html: Entering f.onload callback\n");
+          f.document.designMode = 'on';
+          setTimeout(function() {
+            dump("459443-1.html: Entering setTimeout callback\n");
+            f.document.designMode='on';
+            f.location = 'data:text/html;charset=utf-8,<body>FAIL<script>document.body.innerHTML="PASS"<\/script>';
+            n.addEventListener("load",
+                               function() {
+                                   dump("459443-1.html: Entering n final " +
+                                        "load callback; clearing className\n");
+                                   document.documentElement.className = ''; });
+          }, 0);
+        };
+        f.document.close();
+    }
+    </script>
+  </body>
+</html>