Fixes #29 by addind support for HEAD http method calls

library/Respect/Rest/Router.php

@@ -155,8 +155,8 @@ public function dispatchRequest(Request $request=null)
 
         foreach ($matchedByPath as $route) 
             if (0 !== stripos($request->method, '__')
-                && ($route->method === $request->method || $route->method === 'ANY')
-                && $route->matchRoutines($request, $params)) 
+                && ($route->method === $request->method || $route->method === 'ANY' || ($route->method === 'GET' && $request->method === 'HEAD'))
+                && $route->matchRoutines($request, $params) ) 
                 return $this->configureRequest($request, $route, static::cleanUpParams($params));
 
         header('HTTP/1.1 405');
@@ -172,7 +172,10 @@ public function dispatchRequest(Request $request=null)
     public function run(Request $request=null)
     {
         $route = $this->dispatch($request);
-        return $route ? $route->response() : null;
+        if (!$route || (isset($request->method) && $request->method === 'HEAD'))
+            return null;
+
+        return $route->response();
     }
 
     /** Creates and returns an factory-based route */

tests/library/Respect/Rest/RouterTest.php

@@ -125,10 +125,23 @@ function test_method_not_allowed_header_with_conneg()
         $this->assertContains('HTTP/1.1 405', $header);
         $this->assertContains('Allow: GET', $header);
     }
+    function test_http_method_head()
+    {
+        global $header;
+        $expectedHeader = 'X-Burger: With Cheese!';
+        $this->router->get('/', function() use ($expectedHeader) { 
+            header($expectedHeader);
+            return 'ok'; 
+        });
+        $headResponse = $this->router->dispatch('HEAD', '/');
+        $getResponse  = $this->router->dispatch('GET', '/');
+        $this->assertEquals('ok', (string) $getResponse);
+        $this->assertContains($expectedHeader, $header);
+    }
 }
 $header=array();
 /**
- * [header description]
+ * header() stub to tests ...
  * @return void
  */
 function header($string, $replace=true, $http_response_code=200)