angular/angular.js — pull request #7460 by fwielstra (2014-05-14 11:29:30+00:00)
Title: docs($http): clear up Interceptor docs and code

The documentation and code example of $http interceptors is unclear about whether config can be null
or not, and whether the result should always be a promise or not. This pr clears up the documentation
a bit and removes the literal 'or a promise' interpretation of the docs in the code example.

See #7431