diff --git a/styles/all/template/event/overall_header_head_append.html b/styles/all/template/event/overall_header_head_append.html
index 77c4466..0724173 100644
--- a/styles/all/template/event/overall_header_head_append.html
+++ b/styles/all/template/event/overall_header_head_append.html
@@ -14,7 +14,7 @@
 <meta name="application-name" content="{{ SHORT_SITE_NAME }}">
 
 <!-- Link to app's configuration manifest -->
-<link rel="manifest" href="{{ U_MANIFEST_URL }}">
+<link rel="manifest" href="{{ U_MANIFEST_URL }}" crossorigin="use-credentials">
 
 {% if U_TOUCH_ICON %}
 <!-- App icon for iOS, a fallback to icons defined in the manifest -->