i am using angularjs (an old one) and javax.ws.rs 2.1.6

When the angular code trys to make the call to localhost:8088
I get the error

Access to XMLHttpRequest at ‘http://localhost:8088/api/parse/’ from origin ‘http://localhost:8080’ has been blocked by CORS policy: Response to preflight request doesn’t pass access control check: It does not have HTTP ok status.

My angular code looks like (being called from localhost:8080)

    $http({
        method  : 'POST',
        url     : 'http://localhost:8088/api/parse/',
        crossDomain: true,
        cache:false,
        data    : $.param( {
            vid: vid,
            file: file
        }),
        headers : { 'Content-Type': 'application/json; charset=UTF-8' }
    })
    .success(function(data) {
        return data;
    }).
    error(function(data, status, headers, config) {
        return data;
    });

ON the server side I have http://localhost:8088/api/parse. for now using wild cards to just getting it working..

When i use the debugger, i know that the filter is being called.

@Provider
public class CORSFilter implements ContainerResponseFilter {

    @Override
    public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) throws IOException {
        responseContext.getHeaders().add("Access-Control-Allow-Credentials", "true");
        responseContext.getHeaders().add("Access-Control-Max-Age", "1209600");

        responseContext.getHeaders().add("Access-Control-Allow-Origin", "*");
        responseContext.getHeaders().add("Access-Control-Allow-Headers", "*");
        responseContext.getHeaders().add("Access-Control-Allow-Methods", "*");

    }
}

In my app file i have

@ApplicationPath("/api")
public class RestApplication extends Application {

   private Set<Object> singletons = new HashSet<Object>();

   public RestApplication() {
       singletons.add(new CORSFilter());
   }

   @Override
   public Set<Object> getSingletons() {
        return singletons;
   }

}

And then finally in my resource file i have

    @POST
    @Consumes("application/json")
    @Produces("application/json")
    @Path("/parse")
    public Response parsePost(String jsonPayload, @Context HttpHeaders headers) {
        try {


            String json = "{"success":"ok"+}";


            return Response.ok(json, MediaType.APPLICATION_JSON).build();
    }catch (NotAuthorizedException ex){
            return Response.status(Response.Status.UNAUTHORIZED).entity(ex.getMessage()).build();

    }catch (Exception ex){
        ex.printStackTrace();
        return Response.serverError().entity(ex.getMessage()).build();
    }finally {
    }
}

Thanks for any help or suggestions