WWW WP8 Cache? Maybe requests limit?

Hello, I have some WWW calls to my server, they are used for a lot of reasons. In the editor, android and iOs, works everything like a charm. But in WP8, there are several cases where I upload new data.. then retrieve it somewhere else and I always get the previous result. Not an error, not malformed data.. I get the previous result. If I exit the app, and open it again, it loads the last information I sent to the server.

Does someone have any clues if somehow unity is creating some kind of cache or something of the kind? Thanks!