Move output handling into the render processor

system/src/Grav/Common/Grav.php

@@ -116,9 +116,6 @@ class Grav extends Container
      */
     public function process()
     {
-        /** @var Debugger $debugger */
-        $debugger = $this['debugger'];
-
         // process all processors (e.g. config, initialize, assets, ..., render)
         foreach ($this->processors as $processor) {
             $processor = $this[$processor];
@@ -127,20 +124,10 @@ class Grav extends Container
             });
         }
 
-        $output = $this->output;
-
-        // Support for custom output providers like Slim Framework.
-        if (!$output instanceof \Psr\Http\Message\ResponseInterface) {
-            // Set the header type
-            $this->header();
-
-            echo $output;
-        }
-
+        /** @var Debugger $debugger */
+        $debugger = $this['debugger'];
         $debugger->render();
 
-        $this->fireEvent('onOutputRendered');
-
         register_shutdown_function([$this, 'shutdown']);
     }
 

system/src/Grav/Common/Processors/RenderProcessor.php

@@ -15,7 +15,22 @@ class RenderProcessor extends ProcessorBase implements ProcessorInterface
 
     public function process()
     {
-        $this->container->output = $this->container['output'];
-        $this->container->fireEvent('onOutputGenerated');
+        $container = $this->container;
+        $output =  $container['output'];
+
+        if ($output instanceof \Psr\Http\Message\ResponseInterface) {
+            // Support for custom output providers like Slim Framework.
+        } else {
+            // Use internal Grav output.
+            $container->output = $output;
+            $container->fireEvent('onOutputGenerated');
+
+            // Set the header type
+            $container->header();
+
+            echo $output;
+        }
+
+        $container->fireEvent('onOutputRendered');
     }
 }