Add Content Secure Policy headers
This adds CSP headers to https://docs.gitlab.com. We'll also need to find a way to add it to the online versions, but will do in another MR.
Closes https://gitlab.com/gitlab-org/gitlab-docs/-/issues/850
This adds CSP headers to https://docs.gitlab.com. We'll also need to find a way to add it to the online versions, but will do in another MR.
Closes https://gitlab.com/gitlab-org/gitlab-docs/-/issues/850