I have come acrooss a very strange problem.
I use a POST request for asynchronous data transfer via XMLHHTPRequest. Some clients behind a proxy seem to send the request, but all POST data seems lost. After testing a few days I could not reproduce this on my local system. Could a proxy remove POST data, when there is no change in it?
I have seen them (and Firebug) strip headers, but never POST content. Does a normal POST request work from behind that proxy? Eg a web page.