Reverse Ajax, Problem with blocking by antiviruses,(Avast, Kerio, NOD..)

Hi all,

I use dwr Reverse ajax, and most of antiviruses blocks reverse connection. The only way is to ask users to setup their web shield protection in their antivirus. I wrote to AVAST company and asked them for help. They told me, that thay are not able to analyze response header, because there is no information saying that it is long-term connection.

My response header is this:

Content-Type text/javascript; charset=ISO-8859-1
Transfer-Encoding chunked
Server Jetty(6.1.3)

They told me, that web shield can recognise lightstreamer server according its response header.

LightStreamer header is:

Date Mon, 1 Dec 2008 16:43:17 GMT
Server Lightstreamer/3.5 build 1426 (Lightstreamer Push Server - www.lightstreamer.com) Vivace edition
Content-Type text/html; charset=iso-8859-1
Cache-Control no-store, no-cache
Pragma no-cache
Expires Thu, 1 Jan 1970 00:00:00 GMT
Content-Length 1782
Connection Keep-Alive

So my question is, how can i setup response header of DWR reverse ajax response (ReverseAjax.dwr) ?

And other question is.. Can i setup anything from this header? Because if i can, they will code for me, and globally for all dwr Users exception in their web filter. They told me, that if i can send something like Server: COMET-AJAX jetty(6.1.3) they will add it to the exceptions.

Thanks a lot..

please try to help me, and find a way how to setup it, it will bring solution for all of us, who has problem with avast.


Libor