Content-Security-Policy - HTTP | MDN
The HTTP Content-Security-Policy response header allows web site administrators to control resources the user agent is allowed to load for a given page. With a few exceptions, policies mostly involve specifying server origins and script endpoints. This helps guard against cross-site scripting attacks (XSS (en-US)).
https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Content-Security-Policy
Seonglae Cho
