diff --git a/web/gui/src/main/webapp/preamble.js b/web/gui/src/main/webapp/preamble.js
new file mode 100644
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+++ b/web/gui/src/main/webapp/preamble.js
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+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ ONOS GUI -- Preamble -- the first thing we do
+
+ @author Simon Hunt
+ */
+
+(function () {
+    // Check if the URL in the address bar contains a parameter section
+    // (delineated by '?'). If this is the case, rewrite using '#' instead.
+
+    var m = /([^?]*)\?(.*)/.exec(window.location.href);
+    if (m) {
+        window.location.href = m[1] + '#' + m[2];
+    }
+
+}());