Incorrect gzipping of http requests, can't find who's doing it

Some additional clues

According to http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.5:

• identity The default (identity) encoding; the use of no transformation whatsoever. This content-coding is used only in the Accept- Encoding header, and SHOULD NOT be used in the Content-Encoding header.

Akamai seems to be ignoring the fact that a server could include this header in their response and is not removing it when the change the encoding to "gzip".

Since the upstream server "should" not be adding the header in the first place, that is another way to fix this problem.