Http headers, series 30/40

[tbabben]

Hi,
I'm developing a MIDP appilcation that sends alot of http requests to a server and I wan't to minimize the overhead that is sent in each http request.
The Nokia phones I have tested on (7210, 3510i) adds a number of http headers with alot of information to each request. An example of what I receive on the server:
---
POST /servlet/testservlet HTTP/1.1\r\n
Host: myipaddress\r\n
Accept: */*\r\n
.......
.......
56-Profile-Diff-1: <?xml version="1.0"?><rdf:......LOTS of data..\r\n
56-Profile-Diff-2: <?xml version="1.0"?><rdf:......LOTS of data..\r\n
56-Profile-Diff-3: <?xml version="1.0"?><rdf:......LOTS of data..\r\n
\r\n\r\n
--------
So each http request will consume about 800 bytes in header information. This is not very effective in a wirleless application.

In particular the 56-Profile-Diff-n headers (which are related to UAProf) contains alot of info that I'm not interested in. But I have not found out a way of avoiding the phone to send these headers.

If I try to set the headers in the application with e.g. c.setRequestProperty("56-Profile-Diff-1","a"), the http request will contain two headers with name 56-Profile-Diff-1. One with value "a" and one with a long value that the phone adds.
Note that this only occurs with the 56-Profile headers. If I e.g. add my own User-Agent header (c.setRequestProperty("User-Agent","MyAgent")) only this User-Agent header is in the request and not the standard User-Agent header.

Anyone having an idea of how to get the phone not to add the unnecessary headers?

Best Regards
Babben

[rsmithh]

On the handsets you list, http traffic is routed via WAP. Therefore the headers are probably being added by the WAP gateway, not by the phone.

[tbabben]

maybe... But when I messaure (using the GPRS data counter in the Call Register menu on my 7210) how many bytes that are sent, I can conclude that about 740 bytes are sent when doing one (1) request.
Out of these 740 bytes the body is 11 bytes, so about 730 bytes must come from headers.