I'm a beginning web programmer using gwt and running the back-end of our facebook application on appengine. Whenever our server gets a request for scripts, css, and only what seem to be "source" files, we receive a "signed_request" parameter appended to the request URL.
If I initiate a JSON request on our client we get the "signed_request."
Whenever a simple post/get HTTP request, or a GWT RPC request, is made on the client we DONT get the "signed_request"
Why does this happen? How and when does this "signed_request" get appended to our request?
I guess that through the mechanics of a JSON request, we are effectively requesting a script, so that might be why we get a "signed_request" when using GWT's jsonrequesbuilder...
thanks!