symfony
diff --git a/‎src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml
+1Lines changed: 1 addition & 0 deletions b/‎src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml
Copy file name to clipboardExpand all lines: src/Symfony/Bundle/TwigBundle/Resources/config/twig.xml
+1Lines changed: 1 addition & 0 deletions
diff --git a/‎src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
+4-2Lines changed: 4 additions & 2 deletions b/‎src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/EventListener/ExceptionListener.php
+4-2Lines changed: 4 additions & 2 deletions
diff --git a/‎src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php
+1-1Lines changed: 1 addition & 1 deletion b/‎src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php
Copy file name to clipboardExpand all lines: src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php
+1-1Lines changed: 1 addition & 1 deletion
@@ -129,6 +129,7 @@
             <tag name="monolog.logger" channel="request" />
             <argument>%twig.exception_listener.controller%</argument>
             <argument type="service" id="logger" on-invalid="null" />
+            <argument>%kernel.debug%</argument>
         </service>
 
         <service id="twig.controller.exception" class="%twig.controller.exception.class%">
 
@@ -32,11 +32,13 @@ class ExceptionListener implements EventSubscriberInterface
 {
     protected $controller;
     protected $logger;
+    protected $debug;
 
-    public function __construct($controller, LoggerInterface $logger = null)
+    public function __construct($controller, LoggerInterface $logger = null, $debug = false)
     {
         $this->controller = $controller;
         $this->logger = $logger;
+        $this->debug = $debug;
     }
 
     public function onKernelException(GetResponseForExceptionEvent $event)
@@ -71,7 +73,7 @@ public function onKernelException(GetResponseForExceptionEvent $event)
 
         $event->setResponse($response);
 
-        if ($eventDispatcher instanceof EventDispatcherInterface) {
+        if ($this->debug && $eventDispatcher instanceof EventDispatcherInterface) {
             $cspRemovalListener = function (FilterResponseEvent $event) use (&$cspRemovalListener, $eventDispatcher) {
                 $event->getResponse()->headers->remove('Content-Security-Policy');
                 $eventDispatcher->removeListener(KernelEvents::RESPONSE, $cspRemovalListener);
 
@@ -134,7 +134,7 @@ public function testCSPHeaderIsRemoved()
             return new Response($request->getRequestFormat());
         }));
 
-        $listener = new ExceptionListener('foo', $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock());
+        $listener = new ExceptionListener('foo', $this->getMockBuilder('Psr\Log\LoggerInterface')->getMock(), true);
 
         $dispatcher->addSubscriber($listener);