Add blueprints and fake content

kirby/src/Exception/Exception.php

@@ -121,7 +121,11 @@ class Exception extends \Exception
             }
 
             // format message with passed data
-            $message = Str::template($message, $this->data, '-', '{', '}');
+            $message = Str::template($message, $this->data, [
+                'fallback' => '-',
+                'start'    => '{',
+                'end'      => '}'
+            ]);
 
             // handover to Exception parent class constructor
             parent::__construct($message, null, $args['previous'] ?? null);