an updated and hopefully faster version of the ST Toolbox
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18 lines
757 B

package middleware
import (
"net/http"
)
func SecurityHeaders(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.Header().Set("Content-Security-Policy", "default-src 'self'; script-src 'self' https://unpkg.com 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; connect-src 'self'; object-src 'none'; base-uri 'self'; frame-ancestors 'none'")
w.Header().Set("X-Frame-Options", "DENY")
w.Header().Set("X-Content-Type-Options", "nosniff")
w.Header().Set("Referrer-Policy", "strict-origin-when-cross-origin")
if r.TLS != nil {
w.Header().Set("Strict-Transport-Security", "max-age=63072000; includeSubDomains; preload")
}
next.ServeHTTP(w, r)
})
}