diff --git a/src/Symfony/Component/BrowserKit/Cookie.php b/src/Symfony/Component/BrowserKit/Cookie.php
index 7e855bf351..42f184d532 100644
--- a/src/Symfony/Component/BrowserKit/Cookie.php
+++ b/src/Symfony/Component/BrowserKit/Cookie.php
@@ -213,8 +213,6 @@ class Cookie
         if (false !== $date = date_create($dateValue, new \DateTimeZone('GMT'))) {
             return $date->format('U');
         }
-
-        throw new \InvalidArgumentException(sprintf('Could not parse date "%s".', $dateValue));
     }
 
     /**
diff --git a/src/Symfony/Component/BrowserKit/Tests/CookieTest.php b/src/Symfony/Component/BrowserKit/Tests/CookieTest.php
index 5a724333d3..4722de6d7b 100644
--- a/src/Symfony/Component/BrowserKit/Tests/CookieTest.php
+++ b/src/Symfony/Component/BrowserKit/Tests/CookieTest.php
@@ -88,10 +88,11 @@ class CookieTest extends \PHPUnit_Framework_TestCase
         Cookie::fromString('foo');
     }
 
-    public function testFromStringThrowsAnExceptionIfCookieDateIsNotValid()
+    public function testFromStringIgnoresInvalidExpiresDate()
     {
-        $this->setExpectedException('InvalidArgumentException');
-        Cookie::fromString('foo=bar; expires=Flursday July 31st 2020, 08:49:37 GMT');
+        $cookie = Cookie::fromString('foo=bar; expires=Flursday July 31st 2020, 08:49:37 GMT');
+
+        $this->assertFalse($cookie->isExpired());
     }
 
     public function testFromStringThrowsAnExceptionIfUrlIsNotValid()