diff --git a/system/src/Grav/Common/Processors/DebuggerAssetsProcessor.php b/system/src/Grav/Common/Processors/DebuggerAssetsProcessor.php
index 5160711e4..5fc152bcb 100644
--- a/system/src/Grav/Common/Processors/DebuggerAssetsProcessor.php
+++ b/system/src/Grav/Common/Processors/DebuggerAssetsProcessor.php
@@ -21,15 +21,17 @@ class DebuggerAssetsProcessor extends ProcessorBase
 
     public function process(ServerRequestInterface $request = null, RequestHandlerInterface $handler = null) : ResponseInterface
     {
+        // Backwards compatibility
+        if (is_null($request) && is_null($handler)) {
+            $this->container['debugger']->addAssets();
+            return new Response();
+        }
+
         $this->startTimer();
         $this->container['debugger']->addAssets();
         $this->stopTimer();
 
-        // Backwards compatibility
-        if ($request && $handler) {
-            return $handler->handle($request);
-        } else {
-            return new Response();
-        }
+        return $handler->handle($request);
+
     }
 }
diff --git a/system/src/Grav/Common/Processors/RenderProcessor.php b/system/src/Grav/Common/Processors/RenderProcessor.php
index ff9128b3d..33ca9066c 100644
--- a/system/src/Grav/Common/Processors/RenderProcessor.php
+++ b/system/src/Grav/Common/Processors/RenderProcessor.php
@@ -22,6 +22,24 @@ class RenderProcessor extends ProcessorBase
 
     public function process(ServerRequestInterface $request = null, RequestHandlerInterface $handler = null) : ResponseInterface
     {
+        // Backwards compatibility
+        if (is_null($request) && is_null($handler)) {
+            $container = $this->container;
+            $output =  $container['output'];
+
+            $container->output = $output;
+            $container->fireEvent('onOutputGenerated');
+
+            // Set the header type
+            $container->header();
+            echo $container->output;
+
+            // remove any output
+            $container->output = '';
+            $this->container->fireEvent('onOutputRendered');
+            return new Response();
+        }
+
         $this->startTimer();
 
         $container = $this->container;