Route our new restricted endpoints correctly on vite dev.

frontend/vite.config.js

@@ -46,6 +46,18 @@ export default defineConfig(({ command }) => ({
         })
       }
     },
+    {
+      name: 'restricted-endpoints-rewrite',
+      configureServer(server) {
+        server.middlewares.use((req, _res, next) => {
+          // Rewrite /auth/restricted/iframe and /auth/restricted/oidc to /auth/restricted/
+          if (req.url === '/auth/restricted/iframe' || req.url === '/auth/restricted/oidc') {
+            req.url = '/auth/restricted/'
+          }
+          next()
+        })
+      }
+    },
     {
       name: 'serve-examples',
       configureServer(server) {