Protection Mechanism Failure

  FROM node:24-alpine
  WORKDIR /app
  COPY . .
  EXPOSE 3000
+ HEALTHCHECK --interval=30s --timeout=10s --retries=3 \
+   CMD curl -f http://localhost:3000/health || exit 1
  CMD ["node", "server.js"]
  

  package main
  
  import (
      "net/http"
      "github.com/go-chi/chi/v5"
  )
  
- func main() {
-     r := chi.NewRouter()
+ func securityHeaders(next http.Handler) http.Handler {
+     return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+         w.Header().Set("X-Frame-Options", "DENY")
+         w.Header().Set("X-Content-Type-Options", "nosniff")
+         w.Header().Set("X-XSS-Protection", "1; mode=block")
+         next.ServeHTTP(w, r)
+     })
+ }
+ 
+ func main() {
+     r := chi.NewRouter()
+     r.Use(securityHeaders)
      r.Get("/", homeHandler)
      http.ListenAndServe(":8080", r)
  }
  

  package main
  
- import "github.com/labstack/echo/v4"
- 
- func main() {
-     e := echo.New()
+ import (
+     "github.com/labstack/echo/v4"
+     "github.com/labstack/echo/v4/middleware"
+ )
+ 
+ func main() {
+     e := echo.New()
+     e.Use(middleware.SecureWithConfig(middleware.SecureConfig{
+         XFrameOptions:         "DENY",
+         ContentTypeNosniff:    "nosniff",
+         XSSProtection:         "1; mode=block",
+         ContentSecurityPolicy: "default-src 'self'",
+     }))
      e.GET("/", homeHandler)
      e.Start(":8080")
  }
  

  package main
  
- import "github.com/gofiber/fiber/v2"
- 
- func main() {
-     app := fiber.New()
+ import (
+     "github.com/gofiber/fiber/v2"
+     "github.com/gofiber/fiber/v2/middleware/helmet"
+ )
+ 
+ func main() {
+     app := fiber.New()
+     app.Use(helmet.New())
      app.Get("/", homeHandler)
      app.Listen(":3000")
  }
  

  const express = require('express');
- const app = express();
+ const helmet = require('helmet');
+ const app = express();
+ 
+ app.use(helmet());
  
  app.get('/', (req, res) => {
    res.send('<h1>Hello</h1>');
  });