From 32cdb3b3cd09e5a94fba2409315eb4bf72fec77b Mon Sep 17 00:00:00 2001
From: Michael Jumper <zhangmaike@users.sourceforge.net>
Date: Sat, 10 Nov 2012 23:18:31 -0800
Subject: [PATCH] Avoid caching for all responses.

---
 .../guacamole/servlet/GuacamoleHTTPTunnelServlet.java           | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/guacamole-common/src/main/java/net/sourceforge/guacamole/servlet/GuacamoleHTTPTunnelServlet.java b/guacamole-common/src/main/java/net/sourceforge/guacamole/servlet/GuacamoleHTTPTunnelServlet.java
index 45a60ca56..7b976928b 100644
--- a/guacamole-common/src/main/java/net/sourceforge/guacamole/servlet/GuacamoleHTTPTunnelServlet.java
+++ b/guacamole-common/src/main/java/net/sourceforge/guacamole/servlet/GuacamoleHTTPTunnelServlet.java
@@ -277,6 +277,7 @@ public abstract class GuacamoleHTTPTunnelServlet extends HttpServlet {
             // buffer 1024 bytes before starting a normal stream if we use
             // anything but application/octet-stream.
             response.setContentType("application/octet-stream");
+            response.setHeader("Cache-Control", "no-cache");
 
             Writer out = new BufferedWriter(new OutputStreamWriter(response.getOutputStream(), "UTF-8"));
 
@@ -368,6 +369,7 @@ public abstract class GuacamoleHTTPTunnelServlet extends HttpServlet {
         // attempt to parse the result, even though the JavaScript client
         // does not explicitly request such parsing.
         response.setContentType("application/octet-stream");
+        response.setHeader("Cache-Control", "no-cache");
         response.setContentLength(0);
 
         // Send data