feat($http): accept function as headers value

So we can request with dynamic header value.

module.factory('Res', [
  '$resource'
  '$routeParams'
  'globalConfig'

function($resource, $routeParams, globalConfig) {
  resource('/url/:id', {id: "@id"}, {
    patch: {
      method: 'patch',
      headers: {
        'Authorization': function() {
          return "token " + globalConfig.token;
        }
      }
    }
  });
}]);

1 files changed, 22 insertions, 0 deletions

diff --git a/test/ng/httpSpec.js b/test/ng/httpSpec.js
index 8f2642f3..c21c6c23 100644
--- a/test/ng/httpSpec.js
+++ b/test/ng/httpSpec.js
@@ -784,6 +784,28 @@ describe('$http', function() {
 
         $httpBackend.flush();
       }));
+
+      it('should send execute result if header value is function', inject(function() {
+        var headerConfig = {'Accept': function() { return 'Rewritten'; }};
+
+        function checkHeaders(headers) {
+          return headers['Accept'] == 'Rewritten';
+        }
+
+        $httpBackend.expect('GET', '/url', undefined, checkHeaders).respond('');
+        $httpBackend.expect('POST', '/url', undefined, checkHeaders).respond('');
+        $httpBackend.expect('PUT', '/url', undefined, checkHeaders).respond('');
+        $httpBackend.expect('PATCH', '/url', undefined, checkHeaders).respond('');
+        $httpBackend.expect('DELETE', '/url', undefined, checkHeaders).respond('');
+
+        $http({url: '/url', method: 'GET', headers: headerConfig});
+        $http({url: '/url', method: 'POST', headers: headerConfig});
+        $http({url: '/url', method: 'PUT', headers: headerConfig});
+        $http({url: '/url', method: 'PATCH', headers: headerConfig});
+        $http({url: '/url', method: 'DELETE', headers: headerConfig});
+
+        $httpBackend.flush();
+      }));
     });