Content-Security-Policy for Magento 2: Report-Only vs Restrict, and Tuning to Stop Skimmers
Magento_Csp ships most storefront pages in report-only mode, which enforces nothing. This is how report-only and restrict actually differ, why an over-broad whitelist still lets skimmers run, and the exact sequence to tune csp_whitelist.xml and flip to restrict without breaking checkout.
5 min read