If you have any network sniffer available, you can use that to dump the bytes as they go over the wire. This is of course a really ugly way of going about it, but it has the convenient advantage of working for every kind of HTTP-based format, be it HTML or XML. Coincidentially, I've written Sniffer::HTTP, which sniffs a HTTP connection and gives you HTTP::Request and HTTP::Response objects as it encounters them in the stream. But the easier way for you would likely be to use ethereal, which can save the transfer to a file and analyze it without requiring you to write a program. Also, it is much more tested out than my module.