CXF Jax-RS server service returning only header but no response JSON

I have a very basic Rest Server which returns JSON object. I tested it with Poster Firefox extension and I get both header and response. But we have a test javascript client, which calls the service and when checked with Firebug, we see there is a header but no response. To be sure, we tested the client with another JSON server and the client can read both the header and response.

As I mentioned, it is a very ba开发者_StackOverflow中文版sic Apache CXF, Jax-RS service, so we are not sure what could be missing , that prevents from sending response or prevents client from reading response.

Will appreciate any help or input.

thank you Walker

It wasn't the server it was the client which was not able to read the response properly.