Spark Java CORS Fix

Main.java

        options("/*", (request, response) -> {
            String accessControlRequestHeaders = request.headers("Access-Control-Request-Headers");
            if (accessControlRequestHeaders != null) {
                response.header("Access-Control-Allow-Headers", accessControlRequestHeaders);
            }

            String accessControlRequestMethod = request.headers("Access-Control-Request-Method");
            if (accessControlRequestMethod != null) {
                response.header("Access-Control-Allow-Methods", accessControlRequestMethod);
            }
            return "OK";
        });
        
        before((request, response) -> response.header("Access-Control-Allow-Origin", "*"));
        
        // Paths