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diff --git a/testing/web-platform/tests/IndexedDB/idbcursor_advance_index3.htm b/testing/web-platform/tests/IndexedDB/idbcursor_advance_index3.htm
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+<!DOCTYPE html>
+<title>IDBCursor.advance() - index - attempt to advance backwards</title>
+<link rel="author" href="mailto:odinho@opera.com" title="Odin Hørthe Omdal">
+<link rel=help href="http://dvcs.w3.org/hg/IndexedDB/raw-file/tip/Overview.html#widl-IDBCursor-advance-void-unsigned-long-count">
+<link rel=assert title="The value passed into the count parameter was zero or a negative number.">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="support.js"></script>
+
+<script type="text/javascript">
+
+    var db,
+      t = async_test(document.title, {timeout: 10000}),
+      records = [ { pKey: "primaryKey_0", iKey: "indexKey_0" },
+                  { pKey: "primaryKey_1", iKey: "indexKey_1" } ];
+
+    var open_rq = createdb(t);
+    open_rq.onupgradeneeded = function(e) {
+        db = e.target.result;
+        var objStore = db.createObjectStore("test", { keyPath:"pKey" });
+
+        objStore.createIndex("index", "iKey");
+
+        for (var i = 0; i < records.length; i++)
+            objStore.add(records[i]);
+    };
+
+    open_rq.onsuccess = function(e) {
+        var cursor_rq = db.transaction("test")
+                          .objectStore("test")
+                          .index("index")
+                          .openCursor(undefined, "next");
+
+        cursor_rq.onsuccess = t.step_func(function(e) {
+            var cursor = e.target.result;
+
+            assert_true(cursor != null, "cursor exist");
+            assert_throws(new TypeError(),
+                function() { cursor.advance(-1); });
+
+            t.done();
+        });
+    };
+
+</script>
+
+<div id="log"></div>