fix: omit router data before sitemap creation

lib/builder.js

@@ -50,11 +50,16 @@ function createSitemap(options, routes, base = null, req = null) {
     })
   }
 
-  // Normalize to absolute path each route URL
-  routes = routes.map(route => ({
-    ...route,
-    url: join('.', route.url)
-  }))
+  routes = routes.map(route => {
+    // Omit the router data
+    const { children, chunkName, component, name, path, ...sitemapOptions } = route
+
+    // Normalize to absolute path
+    return {
+      ...sitemapOptions,
+      url: join('.', sitemapOptions.url)
+    }
+  })
 
   // Set urls and ensure they are unique
   sitemapConfig.urls = [...new Set(routes)]