CORS with Angular.js and Sinatra | Devmystify

UPDATE: I've created a follow-up article that shows PUT and DELETE calls. Today, I’m gonna talk about something that always caused me a lot of pain, everytime I had to deal with it : Same-origin policy. This thing is simply awful if you have to make HTTP requests from Javascript. To counter that, you can use JSONP. But only to make GET requests. If you need more than that (POST, PUT, DELETE), you