feat: handle trusted types in pages dir

Author: lsagetlethias

src/next-pagesdir.tsx

@@ -182,7 +182,7 @@ export function createNextDsfrIntegrationApi(
                                 />
                             </>
                         )}
-                        {isProduction && (
+                        {isProduction && !isBrowser && (
                             <script
                                 nonce={nonce}
                                 dangerouslySetInnerHTML={{

test/integration/next-pagesdir/middleware.ts

@@ -0,0 +1,41 @@
+import { NextRequest, NextResponse } from 'next/server'
+ 
+export function middleware(request: NextRequest) {
+  const cspHeader = `
+    require-trusted-types-for 'script';
+    trusted-types react-dsfr react-dsfr-asap nextjs nextjs#bundler;
+`
+ 
+  const requestHeaders = new Headers()
+  requestHeaders.set(
+    'Content-Security-Policy',
+    // Replace newline characters and spaces
+    cspHeader.replace(/\s{2,}/g, ' ').trim()
+  )
+
+  return NextResponse.next({
+    headers: requestHeaders,
+    request: {
+      headers: requestHeaders,
+    },
+  })
+}
+
+export const config = {
+  matcher: [
+    /*
+     * Match all request paths except for the ones starting with:
+     * - api (API routes)
+     * - _next/static (static files)
+     * - _next/image (image optimization files)
+     * - favicon.ico (favicon file)
+     */
+    {
+      source: '/((?!api|_next/static|_next/image|favicon.ico).*)',
+      missing: [
+        { type: 'header', key: 'next-router-prefetch' },
+        { type: 'header', key: 'purpose', value: 'prefetch' },
+      ],
+    },
+  ],
+}