diff --git a/bundles/infobeamer-cms/metadata.py b/bundles/infobeamer-cms/metadata.py
index ab4685c..d376b62 100644
--- a/bundles/infobeamer-cms/metadata.py
+++ b/bundles/infobeamer-cms/metadata.py
@@ -35,6 +35,7 @@ def nginx(metadata):
                     },
                     'website_check_path': '/',
                     'website_check_string': 'Share your projects',
+                    'do_not_set_content_security_headers': True,
                 },
             },
         },