javascript - AngularJS Wordpress JSON API Plugin returning html instead of json -

i'm trying recent posts wordpress blog it's returning html instead of json. want use json make easier access blog contents. have plugin installed , activated. here's posts:

  $http.get('blog/?json=get_recent_posts')   .success(function(data, status, headers, config){       $scope.post = data;       console.log(data);   })   .error(function(data, status, headers, config){-       console.log("unable access!!!!!!!!!!!");   }); 

what's reason it's returning html instead of json? there workarounds? other posts mentioned using jsonp did not work me either.