https://codepen.io/ricokomenda/pen/oNdOBgX
https://blog.sucuri.net/2021/10/how-to-set-up-a-content-security-policy-csp-in-3-steps.html
https://book.hacktricks.xyz/pentesting-web/xs-search/css-injection
https://codepen.io/ricokomenda/pen/ExLzMOq
https://codepen.io/ricokomenda/pen/rNvgQNr