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app/Http/Middleware/SecurityHeaders.php

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+<?php
+
+namespace App\Http\Middleware;
+
+use Closure;
+use Illuminate\Http\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class SecurityHeaders
+{
+    public function handle(Request $request, Closure $next): Response
+    {
+        $response = $next($request);
+
+        $response->headers->set('X-Frame-Options', 'SAMEORIGIN');
+        $response->headers->set('X-Content-Type-Options', 'nosniff');
+        $response->headers->set('X-XSS-Protection', '1; mode=block');
+        $response->headers->set('Referrer-Policy', 'strict-origin-when-cross-origin');
+        $response->headers->set('Permissions-Policy', 'camera=(), microphone=(), geolocation=(), payment=()');
+        $response->headers->set(
+            'Content-Security-Policy',
+            "default-src 'self'; " .
+            "script-src 'self' 'unsafe-inline'; " .
+            "style-src 'self' 'unsafe-inline'; " .
+            "img-src 'self' data: blob:; " .
+            "font-src 'self'; " .
+            "connect-src 'self'; " .
+            "media-src 'self' blob:; " .
+            "object-src 'none'; " .
+            "base-uri 'self'; " .
+            "form-action 'self'; " .
+            "frame-ancestors 'self';"
+        );
+
+        if ($request->isSecure()) {
+            $response->headers->set('Strict-Transport-Security', 'max-age=31536000; includeSubDomains');
+        }
+
+        return $response;
+    }
+}