diff --git a/conf/nginx.conf b/conf/nginx.conf
index d5ac03c..8120fe3 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -51,4 +51,7 @@ location ~ ^/(media|proxy) {
   more_set_headers "Content-Security-Policy : script-src 'none'; default-src 'none'; upgrade-insecure-requests; base-uri 'none'; form-action 'none'; 'sandbox';";
 
   proxy_pass http://localhost:__PORT__;
+=======
+location ~ ^/(proxy|media) {
+    more_set_headers "Content-Security-Policy : default-src 'none'; upgrade-insecure-requests; sandbox;";
 }