Where can I add headers?

[lyric jay]

I want to add some responseHeaders for both server routes & static files. For example: X-Frame-Options: DENY - In the server I guess I can use a middleware as use setResponseHeader but for static/generated pages (i.e. .vue files)?

[wind canopy]

i believe in in nuxt.config.ts

nitro: {
        routeRules: {
            '/images/**': {
                swr: true,
                headers: {
                    'X-Frame-Options': 'DENY'
                }
            }
}

headers aren't part of generated HTML or files, headers are sent by the server