Re-Added the header for the 4.7.1 release
diff --git a/modules/core/src/flex/messaging/endpoints/BaseStreamingHTTPEndpoint.java b/modules/core/src/flex/messaging/endpoints/BaseStreamingHTTPEndpoint.java
index 40e0795..7aa7328 100644
--- a/modules/core/src/flex/messaging/endpoints/BaseStreamingHTTPEndpoint.java
+++ b/modules/core/src/flex/messaging/endpoints/BaseStreamingHTTPEndpoint.java
@@ -778,6 +778,7 @@
                     addNoCacheHeaders(req, res);
                 res.setContentType(getResponseContentType());
                 res.setHeader("Transfer-Encoding", "chunked");
+                res.setHeader("Connection", "close");
                 ServletOutputStream os = res.getOutputStream();
                 res.flushBuffer();