changed before and after filters to only run for the master request (as it's...

changed before and after filters to only run for the master request (as it's mainly used for set up and tear down)

doc/usage.rst

@@ -354,6 +354,10 @@ through before and after filters. All you need to do is pass a closure::
         // tear down
     });
 
+.. note::
+
+    The filters are only run for the "master" Request.
+
 Error handlers
 --------------
 

src/Silex/Application.php

@@ -357,7 +357,9 @@ class Application extends \Pimple implements HttpKernelInterface, EventSubscribe
         } catch (RoutingException $e) {
             // make sure onSilexBefore event is dispatched
 
+            if (HttpKernelInterface::MASTER_REQUEST === $event->getRequestType()) {
                 $this['dispatcher']->dispatch(SilexEvents::BEFORE);
+            }
 
             if ($e instanceof ResourceNotFoundException) {
                 $message = sprintf('No route found for "%s %s"', $this['request']->getMethod(), $this['request']->getPathInfo());
@@ -370,8 +372,10 @@ class Application extends \Pimple implements HttpKernelInterface, EventSubscribe
             throw $e;
         }
 
+        if (HttpKernelInterface::MASTER_REQUEST === $event->getRequestType()) {
             $this['dispatcher']->dispatch(SilexEvents::BEFORE);
         }
+    }
 
     /**
      * Handles converters.
@@ -408,8 +412,10 @@ class Application extends \Pimple implements HttpKernelInterface, EventSubscribe
      */
     public function onKernelResponse(Event $event)
     {
+        if (HttpKernelInterface::MASTER_REQUEST === $event->getRequestType()) {
             $this['dispatcher']->dispatch(SilexEvents::AFTER);
         }
+    }
 
     /**
      * Executes registered error handlers until a response is returned,