1 files changed, 45 insertions, 0 deletions
diff --git a/layout/reftests/bugs/487539-1.html b/layout/reftests/bugs/487539-1.html
new file mode 100644
index 0000000000..de88e713e8
--- /dev/null
+++ b/layout/reftests/bugs/487539-1.html
@@ -0,0 +1,45 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<head>
+<script type="text/javascript">
+
+var img = document.createElement("img");
+img.setAttributeNS(null, "usemap", "#map");
+img.setAttributeNS(null, "src", "data:image/gif;base64,R0lGODlhEwATAKIAAP//AMzMADMzAP8AAAAAAP///wAAAAAAACH5BAEAAAUALAAAAAATABMAAANWWLrUTisyEoC1oUlFr8dQRHykFRad+Y0gdzlv86KVKdsskOUAjHu312rFK5FuxaMNIMgYe85GrVfKZVDAR7DHmVoG4IHn6vqEgZLU90xOq8OazUS7SQAAOw==");
+
+function boom()
+{
+  map = document.createElement("map");
+  map.setAttributeNS(null, "name", "map");
+  area = document.createElement("area");
+  map.appendChild(area);
+  span = document.createElement("span");
+  span.appendChild(img);
+  td = document.createElement("td");
+  span.appendChild(td);
+  map.appendChild(span);
+  document.body.appendChild(map);
+  boom2();
+}
+
+function boom2()
+{
+  // For reliable reproduction, need a flush here.
+  var x = document.body.offsetWidth;
+
+  // needs to be async, apparently.
+  setTimeout(boom3, 0);
+}
+
+function boom3()
+{
+  span.remove(); 
+  document.documentElement.removeAttribute("class");
+}
+
+</script>
+</head>
+
+<body onload="boom();"></body>
+
+</html>