diff --git a/exampleSite/layouts/partials/head/custom.html b/exampleSite/layouts/partials/head/custom.html
index 05815e1..11dde40 100644
--- a/exampleSite/layouts/partials/head/custom.html
+++ b/exampleSite/layouts/partials/head/custom.html
@@ -1 +1 @@
-<meta http-equiv="Content-Security-Policy" content="default-src 'none'; manifest-src 'self'; connect-src 'self'; font-src 'self'; img-src 'self' img.shields.io; script-src 'self' 'unsafe-inline'; style-src 'self'">
+<meta http-equiv="Content-Security-Policy" content="default-src 'none'; base-uri 'self'; form-action 'self'; manifest-src 'self'; connect-src 'self'; font-src 'self'; img-src 'self' img.shields.io; script-src 'self' 'unsafe-inline'; style-src 'self'">