OK, this is going to be a tough one. Strap down, even if it pisses you off at first - I wouldn’t be writing it if I didn’t think it was helpful.
A programmer has something he wants to build.
He finds a framework.
It looks easy enough to get into. There’s a few tutorials available, which show step by step how to build a basic application of just the right type.
He’s happy. He feels really productive. CRUD just “drops out” of the framework’s design. It’s like it was created with his problem in mind.
Then he’s done with the tutorials. He starts plugging in his own, specific requirements. Every so often he hits a snag, but that’s OK, he can just twist the framework’s arm a bit, right?
It all goes well for a while. Then he hits a big one. The framework doesn’t do quite work the way he wants it to.
I recently spent some time pulling my hair at a Chrome extension problem, and it turned out to be something rather silly.
I was attempting to do AJAX requests from an extension to a test local REST service, which I’d written in Clojure using Liberator. GET requests did get to the server, POST didn’t. In either case, however, the extension did not get a reply, and Chrome just reported that it was returning a method not allowed because the resource didn’t have an Access-Control-Allow-Origin header.
This was very odd. First, why would Liberator not fail on GETs at all? Liberator should only return 405 when the request method is not allowed - when did this change, if ever? And then, even if it was a Liberator configuration issue, why would I be able to successfully make requests to it using HTTPie from a terminal?