Embeddable form as a nuxt middleware

client/server/plugins/embeddable.js

@@ -0,0 +1,9 @@
+export default defineNitroPlugin(nitroApp => {
+  nitroApp.hooks.hook('render:response', (response, { event }) => {
+    const routePath= event.context.params._
+    if (!routePath.startsWith('forms/')) {
+      // Only allow embedding of forms
+      response.headers['X-Frame-Options'] = 'sameorigin'
+    }
+  })
+})