implemented a lot of security measures

app/Http/Middleware/ContentSecurityPolicy.php

@@ -13,7 +13,7 @@ class ContentSecurityPolicy
     public function handle(Request $request, Closure $next): Response
     {
         $scriptNonce = base64_encode(random_bytes(16));
-        $styleNonce = null;
+        $styleNonce = base64_encode(random_bytes(16));
 
         $request->attributes->set('csp_script_nonce', $scriptNonce);
         $request->attributes->set('csp_style_nonce', $styleNonce);
@@ -45,7 +45,7 @@ class ContentSecurityPolicy
 
         $styleSources = [
             "'self'",
-            "'unsafe-inline'",
+            "'nonce-{$styleNonce}'",
             'https:',
         ];
 
@@ -97,7 +97,9 @@ class ContentSecurityPolicy
             $imgSources[] = $matomoOrigin;
         }
 
-        if (app()->environment(['local', 'development']) || config('app.debug')) {
+        $isDev = app()->environment(['local', 'development']) || config('app.debug');
+
+        if ($isDev) {
             $devHosts = [
                 'http://fotospiel-app.test:5173',
                 'http://127.0.0.1:5173',
@@ -134,6 +136,7 @@ class ContentSecurityPolicy
             'form-action' => ["'self'"],
             'base-uri' => ["'self'"],
             'object-src' => ["'none'"],
+            'frame-ancestors' => ["'self'"],
         ];
 
         $csp = collect($directives)