fix bug in controller filters.

laravel/routing/filter.php

@@ -302,7 +302,7 @@ class Filter_Collection {
 	 */
 	public function on($methods)
 	{
-		$method = array_map('strtolower', (array) $methods);
+		$this->methods = array_map('strtolower', (array) $methods);
 		return $this;
 	}