diff --git a/src/Controller/ContentApiController.php b/src/Controller/ContentApiController.php
index 426a8d9..b8c183f 100644
--- a/src/Controller/ContentApiController.php
+++ b/src/Controller/ContentApiController.php
@@ -18,7 +18,9 @@ private function handle(Request $request){
         $readers = $this->getParameter('content_api_readers');
         $this->frontendApi = new FrontendApi($readers);
         $this->container->get('contao.framework')->initialize();
-        return $this->json($this->frontendApi->handle($request));
+        $response = $this->json($this->frontendApi->handle($request));
+        $response->headers->add(['Access-Control-Allow-Origin' => '*']);
+        return $response;
     }
 
     /**