diff --git a/manifests/common/app.yaml b/manifests/common/app.yaml
index ad5300f..52c37bb 100644
--- a/manifests/common/app.yaml
+++ b/manifests/common/app.yaml
@@ -12,10 +12,10 @@ metadata:
       more_set_headers Content-Security-Policy "frame-ancestors 'self'";
 
     nginx.ingress.kubernetes.io/server-snippet: |
-      if ($request_uri = "/") {
+      if ($request_uri = /) {
         more_set_headers "Cache-Control: no-cache";
       }
-      if ($request_uri ~* "^/(config.*\.json|i18n|home|sites|index\.html)$") {
+      if ($request_uri ~* ^/(config\..*\.json|i18n|home|sites|index\.html)$) {
         more_set_headers "Cache-Control: no-cache, no-store, must-revalidate";
       }
 spec: