--- /dev/null
+/*
+ * Copyright 2005-2010 the original author or authors.
+ *
+ * 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.
+ */
+package org.wamblee.wicket.page;
+
+import org.apache.wicket.markup.html.WebPage;
+import org.apache.wicket.protocol.http.WebResponse;
+
+/**
+ * <p>
+ * Behavior to disable browser caching. This also means that the page
+ * automatically expires the first time after it is rendered.
+ * </p>
+ *
+ * <p>
+ * Important: To make sure that form data cannot be submitted twice for the same
+ * data using the back button, it is still necessary to explicitly call
+ * <code>getPage().getPageMap().remove(getPage());</code> in the
+ * <code>onSubmit</code> callback of the form.
+ * </p>
+ *
+ * @author Erik Brakkee
+ *
+ */
+public class DisableCachingBehavior extends ExpirePageImmediatelyBehavior {
+
+ @Override
+ public void setHeaders(WebPage aPage, WebResponse aResponse) {
+ aResponse.setHeader("Pragma", "no-cache");
+ aResponse.setHeader("Cache-Control",
+ "no-cache, max-age=0, must-revalidate, no-store");
+ }
+}