Luasocket: strange characters in the http request response:

Subject: Luasocket: strange characters in the http request response:
From: Milind Gupta &lt;milind.gupta@ ... &gt;
Date: Tue, 2 Sep 2014 12:52:59 -0700

Hi,

I an trying to get a xml file from a uPnP device and the file I get starts off as:

∩╗┐<?xml version="1.0"?>

The 1st three characters should not be there. It seems the content-length in the response header is off by 3 so it picks 3 extra characters.

If I open the same file in firefox it gets the same response (checked with Fiddler) but if I save it Firefox saves the file without those 3 characters and makes it a valid XML.

Does anyone have any idea how firefox makes its http request more robust so it can decide that those first 3 characters do not belong to the body of the message? In other words how does it know that the content-length is off.

Thanks,

Milind