diff --git a/recipes-httpd/nginx/files/nginx.conf b/recipes-httpd/nginx/files/nginx.conf
index be7faf9..befe986 100644
--- a/recipes-httpd/nginx/files/nginx.conf
+++ b/recipes-httpd/nginx/files/nginx.conf
@@ -88,7 +88,7 @@
                 add_header X-Frame-Options deny;
                 add_header X-XSS-Protection "1; mode=block";
                 add_header X-Content-Type-Options nosniff;
-                add_header Content-Security-Policy "frame-ancestors 'none'; default-src 'self' 'unsafe-eval' 'unsafe-inline'";
+                add_header Content-Security-Policy "frame-ancestors 'none'; default-src 'self' wss: 'unsafe-eval' 'unsafe-inline'";
                 add_header Strict-Transport-Security "max-age=31536000; includeSubDomains; preload";
                 add_header Cache-Control "no-store,no-cache";
                 add_header Pragma "no-cache";