diff --git a/platform_web/vite.config.ts b/platform_web/vite.config.ts
index 2d03e87..f1b0e2b 100644
--- a/platform_web/vite.config.ts
+++ b/platform_web/vite.config.ts
@@ -10,6 +10,8 @@ export default defineConfig(({ mode }) => {
   server: {
     host: "127.0.0.1",
     port: 5173,
+    // Plugin pages and their assets live outside platform_web, so the dev server must serve the repository root too.
+    fs: { allow: [".", ".."] },
     proxy: {
       "/api/v1": platformProxyTarget,
       "/healthz": platformProxyTarget