diff --git a/src/Symfony/Component/HttpFoundation/Cookie.php b/src/Symfony/Component/HttpFoundation/Cookie.php
index 4519a6adae..d202dc6c1e 100644
--- a/src/Symfony/Component/HttpFoundation/Cookie.php
+++ b/src/Symfony/Component/HttpFoundation/Cookie.php
@@ -145,12 +145,12 @@ class Cookie
         $str = ($this->isRaw() ? $this->getName() : urlencode($this->getName())).'=';
 
         if ('' === (string) $this->getValue()) {
-            $str .= 'deleted; expires='.gmdate('D, d-M-Y H:i:s T', time() - 31536001).'; max-age=-31536001';
+            $str .= 'deleted; expires='.gmdate('D, d-M-Y H:i:s T', time() - 31536001).'; Max-Age=0';
         } else {
             $str .= $this->isRaw() ? $this->getValue() : rawurlencode($this->getValue());
 
             if (0 !== $this->getExpiresTime()) {
-                $str .= '; expires='.gmdate('D, d-M-Y H:i:s T', $this->getExpiresTime()).'; max-age='.$this->getMaxAge();
+                $str .= '; expires='.gmdate('D, d-M-Y H:i:s T', $this->getExpiresTime()).'; Max-Age='.$this->getMaxAge();
             }
         }
 
@@ -224,7 +224,9 @@ class Cookie
      */
     public function getMaxAge()
     {
-        return 0 !== $this->expire ? $this->expire - time() : 0;
+        $maxAge = $this->expire - time();
+
+        return 0 >= $maxAge ? 0 : $maxAge;
     }
 
     /**
diff --git a/src/Symfony/Component/HttpFoundation/Response.php b/src/Symfony/Component/HttpFoundation/Response.php
index 8e2b35e3ca..047190a38f 100644
--- a/src/Symfony/Component/HttpFoundation/Response.php
+++ b/src/Symfony/Component/HttpFoundation/Response.php
@@ -327,7 +327,7 @@ class Response
         }
 
         // headers
-        foreach ($this->headers->allPreserveCaseWithoutCookies() as $name => $values) {
+        foreach ($this->headers->allPreserveCase() as $name => $values) {
             foreach ($values as $value) {
                 header($name.': '.$value, false, $this->statusCode);
             }
@@ -336,15 +336,6 @@ class Response
         // status
         header(sprintf('HTTP/%s %s %s', $this->version, $this->statusCode, $this->statusText), true, $this->statusCode);
 
-        // cookies
-        foreach ($this->headers->getCookies() as $cookie) {
-            if ($cookie->isRaw()) {
-                setrawcookie($cookie->getName(), $cookie->getValue(), $cookie->getExpiresTime(), $cookie->getPath(), $cookie->getDomain(), $cookie->isSecure(), $cookie->isHttpOnly());
-            } else {
-                setcookie($cookie->getName(), $cookie->getValue(), $cookie->getExpiresTime(), $cookie->getPath(), $cookie->getDomain(), $cookie->isSecure(), $cookie->isHttpOnly());
-            }
-        }
-
         return $this;
     }
 
diff --git a/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php b/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php
index 070b7dd429..a47b71e1d4 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/CookieTest.php
@@ -162,13 +162,13 @@ class CookieTest extends TestCase
     public function testToString()
     {
         $cookie = new Cookie('foo', 'bar', $expire = strtotime('Fri, 20-May-2011 15:25:52 GMT'), '/', '.myfoodomain.com', true);
-        $this->assertEquals('foo=bar; expires=Fri, 20-May-2011 15:25:52 GMT; max-age='.($expire - time()).'; path=/; domain=.myfoodomain.com; secure; httponly', (string) $cookie, '->__toString() returns string representation of the cookie');
+        $this->assertEquals('foo=bar; expires=Fri, 20-May-2011 15:25:52 GMT; Max-Age=0; path=/; domain=.myfoodomain.com; secure; httponly', (string) $cookie, '->__toString() returns string representation of the cookie');
 
         $cookie = new Cookie('foo', 'bar with white spaces', strtotime('Fri, 20-May-2011 15:25:52 GMT'), '/', '.myfoodomain.com', true);
-        $this->assertEquals('foo=bar%20with%20white%20spaces; expires=Fri, 20-May-2011 15:25:52 GMT; max-age='.($expire - time()).'; path=/; domain=.myfoodomain.com; secure; httponly', (string) $cookie, '->__toString() encodes the value of the cookie according to RFC 3986 (white space = %20)');
+        $this->assertEquals('foo=bar%20with%20white%20spaces; expires=Fri, 20-May-2011 15:25:52 GMT; Max-Age=0; path=/; domain=.myfoodomain.com; secure; httponly', (string) $cookie, '->__toString() encodes the value of the cookie according to RFC 3986 (white space = %20)');
 
         $cookie = new Cookie('foo', null, 1, '/admin/', '.myfoodomain.com');
-        $this->assertEquals('foo=deleted; expires='.gmdate('D, d-M-Y H:i:s T', $expire = time() - 31536001).'; max-age='.($expire - time()).'; path=/admin/; domain=.myfoodomain.com; httponly', (string) $cookie, '->__toString() returns string representation of a cleared cookie if value is NULL');
+        $this->assertEquals('foo=deleted; expires='.gmdate('D, d-M-Y H:i:s T', $expire = time() - 31536001).'; Max-Age=0; path=/admin/; domain=.myfoodomain.com; httponly', (string) $cookie, '->__toString() returns string representation of a cleared cookie if value is NULL');
 
         $cookie = new Cookie('foo', 'bar', 0, '/', '');
         $this->assertEquals('foo=bar; path=/; httponly', (string) $cookie);
@@ -194,7 +194,7 @@ class CookieTest extends TestCase
         $this->assertEquals($expire - time(), $cookie->getMaxAge());
 
         $cookie = new Cookie('foo', 'bar', $expire = time() - 100);
-        $this->assertEquals($expire - time(), $cookie->getMaxAge());
+        $this->assertEquals(0, $cookie->getMaxAge());
     }
 
     public function testFromString()
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/common.inc b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/common.inc
new file mode 100644
index 0000000000..ba101d3578
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/common.inc
@@ -0,0 +1,39 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Response;
+
+$parent = __DIR__;
+while (!@file_exists($parent.'/vendor/autoload.php')) {
+    if (!@file_exists($parent)) {
+        // open_basedir restriction in effect
+        break;
+    }
+    if ($parent === dirname($parent)) {
+        echo "vendor/autoload.php not found\n";
+        exit(1);
+    }
+
+    $parent = dirname($parent);
+}
+
+require $parent.'/vendor/autoload.php';
+
+error_reporting(-1);
+ini_set('html_errors', 0);
+ini_set('display_errors', 1);
+
+header_remove('X-Powered-By');
+header('Content-Type: text/plain; charset=utf-8');
+
+register_shutdown_function(function () {
+    echo "\n";
+    session_write_close();
+    print_r(headers_list());
+    echo "shutdown\n";
+});
+ob_start();
+
+$r = new Response();
+$r->headers->set('Date', 'Sat, 12 Nov 1955 20:04:00 GMT');
+
+return $r;
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_max_age.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_max_age.expected
new file mode 100644
index 0000000000..bdb9d023f8
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_max_age.expected
@@ -0,0 +1,11 @@
+
+Warning: Expiry date cannot have a year greater than 9999 in %scookie_max_age.php on line 10
+
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+    [1] => Cache-Control: no-cache, private
+    [2] => Date: Sat, 12 Nov 1955 20:04:00 GMT
+    [3] => Set-Cookie: foo=bar; expires=Sat, 01-Jan-10000 02:46:40 GMT; Max-Age=%d; path=/
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_max_age.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_max_age.php
new file mode 100644
index 0000000000..8775a5ccee
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_max_age.php
@@ -0,0 +1,10 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+
+$r = require __DIR__.'/common.inc';
+
+$r->headers->setCookie(new Cookie('foo', 'bar', 253402310800, '', null, false, false));
+$r->sendHeaders();
+
+setcookie('foo2', 'bar', 253402310800, '/');
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_raw_urlencode.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_raw_urlencode.expected
new file mode 100644
index 0000000000..0c097972e7
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_raw_urlencode.expected
@@ -0,0 +1,10 @@
+
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+    [1] => Cache-Control: no-cache, private
+    [2] => Date: Sat, 12 Nov 1955 20:04:00 GMT
+    [3] => Set-Cookie: ?*():@&+$/%#[]=?*():@&+$/%#[]; path=/
+    [4] => Set-Cookie: ?*():@&+$/%#[]=?*():@&+$/%#[]; path=/
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_raw_urlencode.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_raw_urlencode.php
new file mode 100644
index 0000000000..2ca5b59f1a
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_raw_urlencode.php
@@ -0,0 +1,12 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+
+$r = require __DIR__.'/common.inc';
+
+$str = '?*():@&+$/%#[]';
+
+$r->headers->setCookie(new Cookie($str, $str, 0, '/', null, false, false, true));
+$r->sendHeaders();
+
+setrawcookie($str, $str, 0, '/', null, false, false);
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_lax.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_lax.expected
new file mode 100644
index 0000000000..cbde2cbfe1
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_lax.expected
@@ -0,0 +1,9 @@
+
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+    [1] => Cache-Control: no-cache, private
+    [2] => Date: Sat, 12 Nov 1955 20:04:00 GMT
+    [3] => Set-Cookie: CookieSamesiteLaxTest=LaxValue; path=/; httponly; samesite=lax
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_lax.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_lax.php
new file mode 100644
index 0000000000..9a476f1d23
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_lax.php
@@ -0,0 +1,8 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+
+$r = require __DIR__.'/common.inc';
+
+$r->headers->setCookie(new Cookie('CookieSamesiteLaxTest', 'LaxValue', 0, '/', null, false, true, false, Cookie::SAMESITE_LAX));
+$r->sendHeaders();
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_strict.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_strict.expected
new file mode 100644
index 0000000000..adc491fd2b
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_strict.expected
@@ -0,0 +1,9 @@
+
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+    [1] => Cache-Control: no-cache, private
+    [2] => Date: Sat, 12 Nov 1955 20:04:00 GMT
+    [3] => Set-Cookie: CookieSamesiteStrictTest=StrictValue; path=/; httponly; samesite=strict
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_strict.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_strict.php
new file mode 100644
index 0000000000..3bcb41f8f0
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_samesite_strict.php
@@ -0,0 +1,8 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+
+$r = require __DIR__.'/common.inc';
+
+$r->headers->setCookie(new Cookie('CookieSamesiteStrictTest', 'StrictValue', 0, '/', null, false, true, false, Cookie::SAMESITE_STRICT));
+$r->sendHeaders();
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_urlencode.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_urlencode.expected
new file mode 100644
index 0000000000..4e9c4c075f
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_urlencode.expected
@@ -0,0 +1,10 @@
+
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+    [1] => Cache-Control: no-cache, private
+    [2] => Date: Sat, 12 Nov 1955 20:04:00 GMT
+    [3] => Set-Cookie: %3F%2A%28%29%3A%40%26%2B%24%2F%25%23%5B%5D=%3F%2A%28%29%3A%40%26%2B%24%2F%25%23%5B%5D; path=/
+    [4] => Set-Cookie: ?*():@&+$/%#[]=%3F%2A%28%29%3A%40%26%2B%24%2F%25%23%5B%5D; path=/
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_urlencode.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_urlencode.php
new file mode 100644
index 0000000000..05b9af30d5
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/cookie_urlencode.php
@@ -0,0 +1,12 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+
+$r = require __DIR__.'/common.inc';
+
+$str = '?*():@&+$/%#[]';
+
+$r->headers->setCookie(new Cookie($str, $str, 0, '', null, false, false));
+$r->sendHeaders();
+
+setcookie($str, $str, 0, '/');
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/invalid_cookie_name.expected b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/invalid_cookie_name.expected
new file mode 100644
index 0000000000..2b560f0bd5
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/invalid_cookie_name.expected
@@ -0,0 +1,6 @@
+The cookie name "Hello + world" contains invalid characters.
+Array
+(
+    [0] => Content-Type: text/plain; charset=utf-8
+)
+shutdown
diff --git a/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/invalid_cookie_name.php b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/invalid_cookie_name.php
new file mode 100644
index 0000000000..3fe1571845
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/Fixtures/response-functional/invalid_cookie_name.php
@@ -0,0 +1,11 @@
+<?php
+
+use Symfony\Component\HttpFoundation\Cookie;
+
+$r = require __DIR__.'/common.inc';
+
+try {
+    $r->headers->setCookie(new Cookie('Hello + world', 'hodor'));
+} catch (\InvalidArgumentException $e) {
+    echo $e->getMessage();
+}
diff --git a/src/Symfony/Component/HttpFoundation/Tests/ResponseFunctionalTest.php b/src/Symfony/Component/HttpFoundation/Tests/ResponseFunctionalTest.php
new file mode 100644
index 0000000000..22f25e978e
--- /dev/null
+++ b/src/Symfony/Component/HttpFoundation/Tests/ResponseFunctionalTest.php
@@ -0,0 +1,58 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpFoundation\Tests;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @requires PHP 7.0
+ */
+class ResponseFunctionalTest extends TestCase
+{
+    private static $server;
+
+    public static function setUpBeforeClass()
+    {
+        $spec = array(
+            1 => array('file', '/dev/null', 'w'),
+            2 => array('file', '/dev/null', 'w'),
+        );
+        if (!self::$server = @proc_open('exec php -S localhost:8054', $spec, $pipes, __DIR__.'/Fixtures/response-functional')) {
+            self::markTestSkipped('PHP server unable to start.');
+        }
+        sleep(1);
+    }
+
+    public static function tearDownAfterClass()
+    {
+        if (self::$server) {
+            proc_terminate(self::$server);
+            proc_close(self::$server);
+        }
+    }
+
+    /**
+     * @dataProvider provideCookie
+     */
+    public function testCookie($fixture)
+    {
+        $result = file_get_contents(sprintf('http://localhost:8054/%s.php', $fixture));
+        $this->assertStringMatchesFormatFile(__DIR__.sprintf('/Fixtures/response-functional/%s.expected', $fixture), $result);
+    }
+
+    public function provideCookie()
+    {
+        foreach (glob(__DIR__.'/Fixtures/response-functional/*.php') as $file) {
+            yield array(pathinfo($file, PATHINFO_FILENAME));
+        }
+    }
+}
diff --git a/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php b/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php
index ce8553590d..7b5e720afd 100644
--- a/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php
+++ b/src/Symfony/Component/HttpFoundation/Tests/ResponseHeaderBagTest.php
@@ -116,7 +116,7 @@ class ResponseHeaderBagTest extends TestCase
 
         $bag->clearCookie('foo');
 
-        $this->assertSetCookieHeader('foo=deleted; expires='.gmdate('D, d-M-Y H:i:s T', time() - 31536001).'; max-age=-31536001; path=/; httponly', $bag);
+        $this->assertSetCookieHeader('foo=deleted; expires='.gmdate('D, d-M-Y H:i:s T', time() - 31536001).'; Max-Age=0; path=/; httponly', $bag);
     }
 
     public function testClearCookieSecureNotHttpOnly()
@@ -125,7 +125,7 @@ class ResponseHeaderBagTest extends TestCase
 
         $bag->clearCookie('foo', '/', null, true, false);
 
-        $this->assertSetCookieHeader('foo=deleted; expires='.gmdate('D, d-M-Y H:i:s T', time() - 31536001).'; max-age=-31536001; path=/; secure', $bag);
+        $this->assertSetCookieHeader('foo=deleted; expires='.gmdate('D, d-M-Y H:i:s T', time() - 31536001).'; Max-Age=0; path=/; secure', $bag);
     }
 
     public function testReplace()
diff --git a/src/Symfony/Component/HttpKernel/Tests/ClientTest.php b/src/Symfony/Component/HttpKernel/Tests/ClientTest.php
index 051d5d47c0..b774d8ec7a 100644
--- a/src/Symfony/Component/HttpKernel/Tests/ClientTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/ClientTest.php
@@ -60,22 +60,17 @@ class ClientTest extends TestCase
         $m = $r->getMethod('filterResponse');
         $m->setAccessible(true);
 
-        $expected = array(
-            'foo=bar; expires=Sun, 15-Feb-2009 20:00:00 GMT; max-age='.(strtotime('Sun, 15-Feb-2009 20:00:00 GMT') - time()).'; path=/foo; domain=http://example.com; secure; httponly',
-            'foo1=bar1; expires=Sun, 15-Feb-2009 20:00:00 GMT; max-age='.(strtotime('Sun, 15-Feb-2009 20:00:00 GMT') - time()).'; path=/foo; domain=http://example.com; secure; httponly',
-        );
+        $response = new Response();
+        $response->headers->setCookie($cookie1 = new Cookie('foo', 'bar', \DateTime::createFromFormat('j-M-Y H:i:s T', '15-Feb-2009 20:00:00 GMT')->format('U'), '/foo', 'http://example.com', true, true));
+        $domResponse = $m->invoke($client, $response);
+        $this->assertSame((string) $cookie1, $domResponse->getHeader('Set-Cookie'));
 
         $response = new Response();
-        $response->headers->setCookie(new Cookie('foo', 'bar', \DateTime::createFromFormat('j-M-Y H:i:s T', '15-Feb-2009 20:00:00 GMT')->format('U'), '/foo', 'http://example.com', true, true));
+        $response->headers->setCookie($cookie1 = new Cookie('foo', 'bar', \DateTime::createFromFormat('j-M-Y H:i:s T', '15-Feb-2009 20:00:00 GMT')->format('U'), '/foo', 'http://example.com', true, true));
+        $response->headers->setCookie($cookie2 = new Cookie('foo1', 'bar1', \DateTime::createFromFormat('j-M-Y H:i:s T', '15-Feb-2009 20:00:00 GMT')->format('U'), '/foo', 'http://example.com', true, true));
         $domResponse = $m->invoke($client, $response);
-        $this->assertEquals($expected[0], $domResponse->getHeader('Set-Cookie'));
-
-        $response = new Response();
-        $response->headers->setCookie(new Cookie('foo', 'bar', \DateTime::createFromFormat('j-M-Y H:i:s T', '15-Feb-2009 20:00:00 GMT')->format('U'), '/foo', 'http://example.com', true, true));
-        $response->headers->setCookie(new Cookie('foo1', 'bar1', \DateTime::createFromFormat('j-M-Y H:i:s T', '15-Feb-2009 20:00:00 GMT')->format('U'), '/foo', 'http://example.com', true, true));
-        $domResponse = $m->invoke($client, $response);
-        $this->assertEquals($expected[0], $domResponse->getHeader('Set-Cookie'));
-        $this->assertEquals($expected, $domResponse->getHeader('Set-Cookie', false));
+        $this->assertSame((string) $cookie1, $domResponse->getHeader('Set-Cookie'));
+        $this->assertSame(array((string) $cookie1, (string) $cookie2), $domResponse->getHeader('Set-Cookie', false));
     }
 
     public function testFilterResponseSupportsStreamedResponses()