diff --git a/server.ts b/server.ts
index ab6c9b4..3e0f2d3 100644
--- a/server.ts
+++ b/server.ts
@@ -87,6 +87,14 @@ export function app() {
   server.set('view engine', 'html');
   server.set('views', distFolder);
   
+  server.use('/build-css', function (req, res, next) {
+    res.header('Access-Control-Allow-Origin', req.headers.origin);
+    res.header('Access-Control-Allow-Headers', 'Origin, X-Requested-With, Content-Type, Accept');
+    res.header('Access-Control-Allow-Methods', 'GET, OPTIONS, POST, DELETE');
+    res.header('Access-Control-Max-Age', "1800");
+    next();
+  });
+  
   server.use(function (req, res, next) {
     var XFRAME_WHITELIST = [ 'http://spitoo.di.uoa.gr:5000/','http://scoobydoo.di.uoa.gr:5000/', 'https://beta.admin.connect.openaire.eu/','https://admin.connect.openaire.eu/'  ];
     let referer: string;