[eluser]tonydewan[/eluser]
@Andreia M. If your still having trouble, you might check out my library called Carabiner. It provides similar functionality, but without the overhead of PHP based GZIP. The link to the library forum post is in my signature.
@Skinnpenal I don't know of a CI library that offers that functionality. Carabiner certainly doesn't, though that would be an interesting feature to implement. Good luck on your search.