diff --git a/html/includes/api_functions.inc.php b/html/includes/api_functions.inc.php
index 2b12d4a374..607c4cacd0 100644
--- a/html/includes/api_functions.inc.php
+++ b/html/includes/api_functions.inc.php
@@ -380,13 +380,6 @@ function list_bgp() {
 function get_graph_by_portgroup() {
   global $config;
   $app = \Slim\Slim::getInstance();
-  if ($app->request->getMediaType() != "image/png") {
-      // we only support PNG graphs at the moment
-      $app->response->setStatus(406);	// Not Acceptable
-      echo("<h3>Not Acceptable</h3>\n");
-      echo("<p>Only media type 'image/png' is provided at present</p>\n");
-      return;
-  }
   $router = $app->router()->getCurrentRoute()->getParams();
   $group = $router['group'];
   $vars = array();