nginxUsing x-frame-options header

server {
  add_header X-Frame-Options "SAMEORIGIN";
}ctrl + cyoutubegithub

`server {` virtual server configuration block	`add_header` sets specified header
`X-Frame-Options` this header controls loading of our website in iframes	`SAMEORIGIN` ensure our website can be loaded inside iframe from our domain only (from same origin)