diff --git a/composer.lock b/composer.lock
index eea55a3a39df37142e761d6a9fb8c16ac5f4a490..132fba5188265a4c9295c7ca2bb8f50f5d09ecf4 100644
--- a/composer.lock
+++ b/composer.lock
@@ -7,49 +7,6 @@
     "hash": "7d101b08e5ae002d827cd42ae9a4e344",
     "content-hash": "60f7057617c6d995bf9946d0b12f0b5d",
     "packages": [
-        {
-            "name": "asm89/stack-cors",
-            "version": "0.2.1",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/asm89/stack-cors.git",
-                "reference": "2d77e77251a434e4527315313a672f5801b29fa2"
-            },
-            "dist": {
-                "type": "zip",
-                "url": "https://api.github.com/repos/asm89/stack-cors/zipball/2d77e77251a434e4527315313a672f5801b29fa2",
-                "reference": "2d77e77251a434e4527315313a672f5801b29fa2",
-                "shasum": ""
-            },
-            "require": {
-                "php": ">=5.3.2",
-                "symfony/http-foundation": "~2.1",
-                "symfony/http-kernel": "~2.1"
-            },
-            "type": "library",
-            "autoload": {
-                "psr-0": {
-                    "Asm89\\Stack": "src/"
-                }
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "license": [
-                "MIT"
-            ],
-            "authors": [
-                {
-                    "name": "Alexander",
-                    "email": "iam.asm89@gmail.com"
-                }
-            ],
-            "description": "Cross-origin resource sharing library and stack middleware",
-            "homepage": "https://github.com/asm89/stack-cors",
-            "keywords": [
-                "cors",
-                "stack"
-            ],
-            "time": "2014-07-28 07:22:35"
-        },
         {
             "name": "composer/installers",
             "version": "v1.0.21",
@@ -1104,7 +1061,7 @@
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/php-fig/log/zipball/fe0936ee26643249e916849d48e3a51d5f5e278b",
+                "url": "https://api.github.com/repos/php-fig/log/zipball/1.0.0",
                 "reference": "1.0.0",
                 "shasum": ""
             },
@@ -2759,24 +2716,24 @@
     "packages-dev": [
         {
             "name": "behat/mink",
-            "version": "v1.7.0",
+            "version": "v1.7.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/minkphp/Mink.git",
-                "reference": "6c129030ec2cc029905cf969a56ca8f087b2dfdf"
+                "reference": "e6930b9c74693dff7f4e58577e1b1743399f3ff9"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/minkphp/Mink/zipball/6c129030ec2cc029905cf969a56ca8f087b2dfdf",
-                "reference": "6c129030ec2cc029905cf969a56ca8f087b2dfdf",
+                "url": "https://api.github.com/repos/minkphp/Mink/zipball/e6930b9c74693dff7f4e58577e1b1743399f3ff9",
+                "reference": "e6930b9c74693dff7f4e58577e1b1743399f3ff9",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.1",
-                "symfony/css-selector": "~2.1"
+                "symfony/css-selector": "~2.1|~3.0"
             },
             "require-dev": {
-                "symfony/phpunit-bridge": "~2.7"
+                "symfony/phpunit-bridge": "~2.7|~3.0"
             },
             "suggest": {
                 "behat/mink-browserkit-driver": "extremely fast headless driver for Symfony\\Kernel-based apps (Sf2, Silex)",
@@ -2813,31 +2770,31 @@
                 "testing",
                 "web"
             ],
-            "time": "2015-09-20 20:24:03"
+            "time": "2016-03-05 08:26:18"
         },
         {
             "name": "behat/mink-browserkit-driver",
-            "version": "v1.3.0",
+            "version": "v1.3.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/minkphp/MinkBrowserKitDriver.git",
-                "reference": "da47df1593dac132f04d24e7277ef40d33d9f201"
+                "reference": "10e67fb4a295efcd62ea0bf16025a85ea19534fb"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/minkphp/MinkBrowserKitDriver/zipball/da47df1593dac132f04d24e7277ef40d33d9f201",
-                "reference": "da47df1593dac132f04d24e7277ef40d33d9f201",
+                "url": "https://api.github.com/repos/minkphp/MinkBrowserKitDriver/zipball/10e67fb4a295efcd62ea0bf16025a85ea19534fb",
+                "reference": "10e67fb4a295efcd62ea0bf16025a85ea19534fb",
                 "shasum": ""
             },
             "require": {
-                "behat/mink": "~1.7@dev",
+                "behat/mink": "^1.7.1@dev",
                 "php": ">=5.3.6",
-                "symfony/browser-kit": "~2.3",
-                "symfony/dom-crawler": "~2.3"
+                "symfony/browser-kit": "~2.3|~3.0",
+                "symfony/dom-crawler": "~2.3|~3.0"
             },
             "require-dev": {
                 "silex/silex": "~1.2",
-                "symfony/phpunit-bridge": "~2.7"
+                "symfony/phpunit-bridge": "~2.7|~3.0"
             },
             "type": "mink-driver",
             "extra": {
@@ -2869,20 +2826,20 @@
                 "browser",
                 "testing"
             ],
-            "time": "2015-09-21 20:56:13"
+            "time": "2016-03-05 08:59:47"
         },
         {
             "name": "behat/mink-goutte-driver",
-            "version": "v1.2.0",
+            "version": "v1.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/minkphp/MinkGoutteDriver.git",
-                "reference": "c8e254f127d6f2242b994afd4339fb62d471df3f"
+                "reference": "8b9ad6d2d95bc70b840d15323365f52fcdaea6ca"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/minkphp/MinkGoutteDriver/zipball/c8e254f127d6f2242b994afd4339fb62d471df3f",
-                "reference": "c8e254f127d6f2242b994afd4339fb62d471df3f",
+                "url": "https://api.github.com/repos/minkphp/MinkGoutteDriver/zipball/8b9ad6d2d95bc70b840d15323365f52fcdaea6ca",
+                "reference": "8b9ad6d2d95bc70b840d15323365f52fcdaea6ca",
                 "shasum": ""
             },
             "require": {
@@ -2892,7 +2849,7 @@
                 "php": ">=5.3.1"
             },
             "require-dev": {
-                "symfony/phpunit-bridge": "~2.7"
+                "symfony/phpunit-bridge": "~2.7|~3.0"
             },
             "type": "mink-driver",
             "extra": {
@@ -2924,7 +2881,7 @@
                 "headless",
                 "testing"
             ],
-            "time": "2015-09-21 21:31:11"
+            "time": "2016-03-05 09:04:22"
         },
         {
             "name": "doctrine/instantiator",
@@ -2982,24 +2939,24 @@
         },
         {
             "name": "fabpot/goutte",
-            "version": "v3.1.1",
+            "version": "v3.1.2",
             "source": {
                 "type": "git",
                 "url": "https://github.com/FriendsOfPHP/Goutte.git",
-                "reference": "751a3dc5c4d86ec3e97c9f27133ef9694d9243cc"
+                "reference": "3cbc6ed222422a28400e470050f14928a153207e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/FriendsOfPHP/Goutte/zipball/751a3dc5c4d86ec3e97c9f27133ef9694d9243cc",
-                "reference": "751a3dc5c4d86ec3e97c9f27133ef9694d9243cc",
+                "url": "https://api.github.com/repos/FriendsOfPHP/Goutte/zipball/3cbc6ed222422a28400e470050f14928a153207e",
+                "reference": "3cbc6ed222422a28400e470050f14928a153207e",
                 "shasum": ""
             },
             "require": {
                 "guzzlehttp/guzzle": "^6.0",
                 "php": ">=5.5.0",
-                "symfony/browser-kit": "~2.1",
-                "symfony/css-selector": "~2.1",
-                "symfony/dom-crawler": "~2.1"
+                "symfony/browser-kit": "~2.1|~3.0",
+                "symfony/css-selector": "~2.1|~3.0",
+                "symfony/dom-crawler": "~2.1|~3.0"
             },
             "type": "application",
             "extra": {
@@ -3027,7 +2984,7 @@
             "keywords": [
                 "scraper"
             ],
-            "time": "2015-08-29 16:16:56"
+            "time": "2015-11-05 12:58:44"
         },
         {
             "name": "jcalderonzumba/gastonjs",
diff --git a/core/composer.json b/core/composer.json
index 7ae7f4f7380c5b5b8bac95977a7b30d015a8f736..310964982c64d8694cdb053fb10096370e48ada7 100644
--- a/core/composer.json
+++ b/core/composer.json
@@ -31,8 +31,7 @@
         "symfony/psr-http-message-bridge": "v0.2",
         "zendframework/zend-diactoros": "~1.1",
         "composer/semver": "~1.0",
-        "paragonie/random_compat": "~1.0",
-        "asm89/stack-cors": "~0.2.1"
+        "paragonie/random_compat": "~1.0"
     },
     "require-dev": {
         "behat/mink": "~1.7",
diff --git a/core/core.services.yml b/core/core.services.yml
index 6310c211b55e871650442ad338795517ffe6b24d..d90aebaa8b9ebbe99f451a211f67d3f36bb0aad1 100644
--- a/core/core.services.yml
+++ b/core/core.services.yml
@@ -33,14 +33,6 @@ parameters:
     - sftp
     - webcal
     - rtsp
-  cors.config:
-    enabled: false
-    allowedHeaders: []
-    allowedMethods: []
-    allowedOrigins: ['*']
-    exposedHeaders: false
-    maxAge: false
-    supportsCredentials: false
 services:
   # Simple cache contexts, directly derived from the request context.
   cache_context.ip:
@@ -714,11 +706,6 @@ services:
       - { name: http_middleware, priority: 50 }
     calls:
       - [setContainer, ['@service_container']]
-  http_middleware.cors:
-     class: Asm89\Stack\Cors
-     arguments: ['%cors.config%']
-     tags:
-       - { name: http_middleware }
   psr7.http_foundation_factory:
     class: Symfony\Bridge\PsrHttpMessage\Factory\HttpFoundationFactory
   psr7.http_message_factory:
diff --git a/core/lib/Drupal/Core/CoreServiceProvider.php b/core/lib/Drupal/Core/CoreServiceProvider.php
index 8a22bc50d4b6c8b70d6ee9ede8e98c45bbc32999..013dec14d9b2bae3577bdd64804e1a5f99baa183 100644
--- a/core/lib/Drupal/Core/CoreServiceProvider.php
+++ b/core/lib/Drupal/Core/CoreServiceProvider.php
@@ -6,7 +6,6 @@
 use Drupal\Core\Cache\ListCacheBinsPass;
 use Drupal\Core\DependencyInjection\Compiler\AuthenticationProviderPass;
 use Drupal\Core\DependencyInjection\Compiler\BackendCompilerPass;
-use Drupal\Core\DependencyInjection\Compiler\CorsCompilerPass;
 use Drupal\Core\DependencyInjection\Compiler\GuzzleMiddlewarePass;
 use Drupal\Core\DependencyInjection\Compiler\ContextProvidersPass;
 use Drupal\Core\DependencyInjection\Compiler\ProxyServicesPass;
@@ -65,8 +64,6 @@ public function register(ContainerBuilder $container) {
 
     $container->addCompilerPass(new BackendCompilerPass());
 
-    $container->addCompilerPass(new CorsCompilerPass());
-
     $container->addCompilerPass(new StackedKernelPass());
 
     $container->addCompilerPass(new StackedSessionHandlerPass());
diff --git a/core/lib/Drupal/Core/DependencyInjection/Compiler/CorsCompilerPass.php b/core/lib/Drupal/Core/DependencyInjection/Compiler/CorsCompilerPass.php
deleted file mode 100644
index 207e094094f4870b401bf377972e95f75e6d53ee..0000000000000000000000000000000000000000
--- a/core/lib/Drupal/Core/DependencyInjection/Compiler/CorsCompilerPass.php
+++ /dev/null
@@ -1,31 +0,0 @@
-<?php
-
-namespace Drupal\Core\DependencyInjection\Compiler;
-
-use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
-use Symfony\Component\DependencyInjection\ContainerBuilder;
-
-/**
- * Provides a compiler pass which disables the CORS middleware in case disabled.
- *
- * @see core.services.yml
- */
-class CorsCompilerPass implements CompilerPassInterface {
-
-  /**
-   * {@inheritdoc}
-   */
-  public function process(ContainerBuilder $container) {
-    $enabled = FALSE;
-
-    if ($cors_config = $container->getParameter('cors.config')) {
-      $enabled = !empty($cors_config['enabled']);
-    }
-
-    // Remove the CORS middleware completly in case it was not enabled.
-    if (!$enabled) {
-      $container->removeDefinition('http_middleware.cors');
-    }
-  }
-
-}
diff --git a/core/tests/Drupal/KernelTests/Core/HttpKernel/CorsIntegrationTest.php b/core/tests/Drupal/KernelTests/Core/HttpKernel/CorsIntegrationTest.php
deleted file mode 100644
index e73efa3b74f01706c249feea9b0239b8f9872ed2..0000000000000000000000000000000000000000
--- a/core/tests/Drupal/KernelTests/Core/HttpKernel/CorsIntegrationTest.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-
-namespace Drupal\KernelTests\Core\HttpKernel;
-
-use Drupal\Core\DependencyInjection\ContainerBuilder;
-use Drupal\Core\DependencyInjection\ServiceModifierInterface;
-use Drupal\KernelTests\KernelTestBase;
-use Symfony\Component\HttpFoundation\Request;
-use Symfony\Component\HttpFoundation\Response;
-
-/**
- * Tests CORS provided by Drupal.
- *
- * @see sites/default/default.services.yml
- * @see \Asm89\Stack\Cors
- * @see \Asm89\Stack\CorsService
- *
- * @group Http
- */
-class CorsIntegrationTest extends KernelTestBase implements ServiceModifierInterface {
-
-  /**
-   * The cors container configuration.
-   *
-   * @var null|array
-   */
-  protected $corsConfig = NULL;
-
-  /**
-   * {@inheritdoc}
-   */
-  public static $modules = ['system', 'test_page_test'];
-
-  protected function setUp() {
-    parent::setUp();
-
-    $this->installSchema('system', 'router');
-    \Drupal::service('router.builder')->rebuild();
-  }
-
-  public function testCrossSiteRequest() {
-
-    // Test default parameters.
-    $cors_config = $this->container->getParameter('cors.config');
-    $this->assertSame(FALSE, $cors_config['enabled']);
-    $this->assertSame([], $cors_config['allowedHeaders']);
-    $this->assertSame([], $cors_config['allowedMethods']);
-    $this->assertSame(['*'], $cors_config['allowedOrigins']);
-
-    $this->assertSame(FALSE, $cors_config['exposedHeaders']);
-    $this->assertSame(FALSE, $cors_config['maxAge']);
-    $this->assertSame(FALSE, $cors_config['supportsCredentials']);
-
-    // Configure the CORS stack to allow a specific set of origins, but don't
-    // specify an origin header.
-    $request = Request::create('/test-page');
-    $request->headers->set('Origin', '');
-    $cors_config['enabled'] = TRUE;
-    $cors_config['allowedOrigins'] = ['http://example.com'];
-
-    $this->corsConfig = $cors_config;
-    $this->container->get('kernel')->rebuildContainer();
-
-    /** @var \Symfony\Component\HttpFoundation\Response $response */
-    $response = $this->container->get('http_kernel')->handle($request);
-    $this->assertEquals(Response::HTTP_FORBIDDEN, $response->getStatusCode());
-    $this->assertEquals('Not allowed.', $response->getContent());
-
-    // Specify a valid origin.
-    $request->headers->set('Origin', 'http://example.com');
-    $response = $this->container->get('http_kernel')->handle($request);
-    $this->assertEquals(Response::HTTP_OK, $response->getStatusCode());
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function alter(ContainerBuilder $container) {
-    if (isset($this->corsConfig)) {
-      $container->setParameter('cors.config', $this->corsConfig);
-    }
-  }
-
-}
diff --git a/sites/default/default.services.yml b/sites/default/default.services.yml
index e1bbbc7e21f0b4c31e263c4a2e884871567de73d..23f6483cc72f3f073f034f1bdcfab66cefea801b 100644
--- a/sites/default/default.services.yml
+++ b/sites/default/default.services.yml
@@ -153,22 +153,3 @@ parameters:
     - sftp
     - webcal
     - rtsp
-
-   # Configure Cross-Site HTTP requests (CORS).
-   # Read https://developer.mozilla.org/en-US/docs/Web/HTTP/Access_control_CORS
-   # for more information about the topic in general.
-   # Note: By default the configuration is disabled.
-  cors.config:
-    enabled: false
-    # Specify allowed headers, like 'x-allowed-header'.
-    allowedHeaders: []
-    # Specify allowed request methods, specify ['*'] to allow all possible ones.
-    allowedMethods: []
-    # Configure requests allowed from specific origins.
-    allowedOrigins: ['*']
-    # Sets the Access-Control-Expose-Headers header.
-    exposedHeaders: false
-    # Sets the Access-Control-Max-Age header.
-    maxAge: false
-    # Sets the Access-Control-Allow-Credentials header.
-    supportsCredentials: false