Meteor with plain javascript

 Hi , I am new to meteor and building a webapp with meteor + angular2 . Everything is great till now. But in our project we have a javascript file that runs at the any other website by chrome extension (js file added to that website when there is a new tab opened.) . I want to access meteor server and get new data when there is a new one . 
Before we were using nodejs+ for that reason.

 My question is how can i listen meteor server from js that will run at any other website.

Take a look at asteroid.

Thank you , I am very presiatied