So, this means that this is showstopper for me??
Sorry, I couldn't find a solution. It doesn't appear that the built-in HTTPService allows for this type of adjustment.
You may want to try looking at the AS3 HTTP Client Lib. I haven't used it, so I don't know if it solves your problem either, but it's worth a look.
I hope you find the solution. When you do, please share.
Thanks for reply and link but no luck for me :(
I have spent couple of hours searching for a solution and it seem that I need to wait some more...