A newly discovered skimming campaign runs entirely on Google servers, Sansec research shows. For the other two, add to the connect-src directive. notorious XSS attack vectors. Out of these: … For details, see the Google Developers Site Policies. by making it impossible for you to accidentally execute script provided by a https://support.google.com/analytics/answer/1033068. Google Analytics will try to load a tiny image, so you will need img-src www.google-analytics.com requests; they're an additional layer of protection, not a replacement. Hash usage for