diff --git a/nginx/conf.d/default.conf b/nginx/conf.d/default.conf
index 1a98d69..e1df794 100644
--- a/nginx/conf.d/default.conf
+++ b/nginx/conf.d/default.conf
@@ -4,6 +4,9 @@ server {
     listen [::]:80;
     location / {
         try_files $uri $uri/ =404;
+        add_header Access-Control-Allow-Origin "https://matrix-home.send.nrw";
+        add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept, Authorization";
+        add_header Access-Control-Allow-Credentials true;
     }
     location ~ \.php$ {
         fastcgi_pass 127.0.0.1:9000;