Make a method that can be used in multiple places for setting the

no-cache headers.

Refs: #7593

@@ -265,6 +265,20 @@ public class DirectControlServlet extends HttpServlet {
             return file;
         }
 
+        protected void setResponseNoCache() {
+            // Set to expire far in the past.
+            response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
+
+            // Set standard HTTP/1.1 no-cache headers.
+            response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
+
+            // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
+            response.addHeader("Cache-Control", "post-check=0, pre-check=0");
+
+            // Set standard HTTP/1.0 no-cache header.
+            response.setHeader("Pragma", "no-cache");
+        }
+
         protected void processRequest() throws Exception {
             Map<String, Object> context = new HashMap<String, Object>();
 
@@ -426,17 +440,7 @@ public class DirectControlServlet extends HttpServlet {
             }
             response.setStatus(statusCode);
 
-            // Set to expire far in the past.
-            response.setHeader("Expires", "Sat, 6 May 1995 12:00:00 GMT");
-
-            // Set standard HTTP/1.1 no-cache headers.
-            response.setHeader("Cache-Control", "no-store, no-cache, must-revalidate");
-
-            // Set IE extended HTTP/1.1 no-cache headers (use addHeader).
-            response.addHeader("Cache-Control", "post-check=0, pre-check=0");
-
-            // Set standard HTTP/1.0 no-cache header.
-            response.setHeader("Pragma", "no-cache");
+            setResponseNoCache();
 
             if ("JSON".equals(outputHandler)) {
                 response.setContentType("application/x-json");