Here is a little tidbit that we discovered while trying to debug an issue at work. One of my colleagues found that the Symantec/Norton Personal Firewall/Internet Security mangles the “Accept-Encoding” header sent out by any application — browser, streaming media, etc.
More can be found here.
This is a serious problem, and has a negative effect on Web performance in general, as one of the key methods for improving bandwidth consumption and user performance is Server-Side Compression of as much content as possible.
What the client wants to send: Accept-Encoding: gzip,deflate\r\n What is sent: ---------------: ---- -------\r\n
What is the problem? Is this because Symantec can’t parse compressed content on the fly?