Why does a cross-domain angularjs $http.post request fail when a XMLHttpRequest succeeds?

Question

I am trying to exercise the Trello API with an application key and token from an angular (version 1.0.5) webapp. The server seems correctly configured to handle CORS. A test req

Answer 1

The 'content-type' header is not accepted by the server and is added by default for Angular $http POST request (see $http doc). You can try to remove it from your $http config. Inject $httpProvider in your controller, then this might work:

delete $httpProvider.defaults.headers.post['Content-type']

You might have to try with 'content-type' also, I'm not sure of the case to use.