feat($http): add withCredentials config option

Author: vojtajina

src/ng/http.js

@@ -375,6 +375,9 @@ function $HttpProvider() {
      *      {@link angular.module.ng.$cacheFactory $cacheFactory}, this cache will be used for
      *      caching.
      *    - **timeout** – `{number}` – timeout in milliseconds.
+     *    - **withCredentials** - `{boolean}` - whether to to set the `withCredentials` flag on the
+     *      XHR object. See {@link https://developer.mozilla.org/en/http_access_control#section_5
+     *      requests with credentials} for more information.
      *
      * @returns {HttpPromise} Returns a {@link angular.module.ng.$q promise} object with the
      *   standard `then` method and two http specific methods: `success` and `error`. The `then`
@@ -674,7 +677,8 @@ function $HttpProvider() {
 
       // if we won't have the response in cache, send the request to the backend
       if (!cachedResp) {
-        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout);
+        $httpBackend(config.method, url, reqData, done, reqHeaders, config.timeout,
+            config.withCredentials);
       }
 
       return promise;

src/ng/httpBackend.js

@@ -32,7 +32,7 @@ function $HttpBackendProvider() {
 
 function createHttpBackend($browser, XHR, $browserDefer, callbacks, body, locationProtocol) {
   // TODO(vojta): fix the signature
-  return function(method, url, post, callback, headers, timeout) {
+  return function(method, url, post, callback, headers, timeout, withCredentials) {
     $browser.$$incOutstandingRequestCount();
     url = url || $browser.url();
 
@@ -71,6 +71,10 @@ function createHttpBackend($browser, XHR, $browserDefer, callbacks, body, locati
         }
       };
 
+      if (withCredentials) {
+        xhr.withCredentials = true;
+      }
+
       xhr.send(post || '');
 
       if (timeout > 0) {

test/ng/httpBackendSpec.js

@@ -113,6 +113,12 @@ describe('$httpBackend', function() {
   });
 
 
+  it('should set withCredentials', function() {
+    $backend('GET', '/some.url', null, callback, {}, null, true);
+    expect(MockXhr.$$lastInstance.withCredentials).toBe(true);
+  });
+
+
   describe('JSONP', function() {
 
     var SCRIPT_URL = /([^\?]*)\?cb=angular\.callbacks\.(.*)/;

test/ng/httpSpec.js

@@ -7,6 +7,7 @@ describe('$http', function() {
   beforeEach(function() {
     callback = jasmine.createSpy('done');
   });
+
   beforeEach(module(function($exceptionHandlerProvider) {
       $exceptionHandlerProvider.mode('log');
   }));
@@ -129,9 +130,6 @@ describe('$http', function() {
     }));
 
 
-    // TODO(vojta): test passing timeout
-
-
     describe('params', function() {
       it('should do basic request with params and encode', inject(function($httpBackend, $http) {
         $httpBackend.expect('GET', '/url?a%3D=%3F%26&b=2').respond('');
@@ -943,4 +941,25 @@ describe('$http', function() {
       });
     });
   });
+
+
+  it('should pass timeout and withCredentials', function() {
+    var $httpBackend = jasmine.createSpy('$httpBackend');
+
+    $httpBackend.andCallFake(function(m, u, d, c, h, timeout, withCredentials) {
+      expect(timeout).toBe(12345);
+      expect(withCredentials).toBe(true);
+    });
+
+    module(function($provide) {
+      $provide.value('$httpBackend', $httpBackend);
+    });
+
+    inject(function($http) {
+      $http({method: 'GET', url: 'some.html', timeout: 12345, withCredentials: true});
+      expect($httpBackend).toHaveBeenCalledOnce();
+    });
+
+    $httpBackend.verifyNoOutstandingExpectation = noop;
+  });
 });