diff --git a/src/router-public.ts b/src/router-public.ts
index 956fd40..051c441 100644
--- a/src/router-public.ts
+++ b/src/router-public.ts
@@ -127,6 +127,7 @@ function buildConfigResponse(origin: string) {
       'email-verification': true,
       'pm-19051-send-email-verification': false,
       'pm-19148-innovation-archive': true,
+      'pm-30529-webauthn-related-origins': true,
       'unauth-ui-refresh': true,
       'web-push': false,
     },
@@ -469,7 +470,7 @@ export async function handlePublicRoute(
     const blocked = await enforcePublicRateLimit('public-read', LIMITS.rateLimit.publicReadRequestsPerMinute);
     if (blocked) return blocked;
     const origin = new URL(request.url).origin;
-    return jsonResponse(buildConfigResponse(origin));
+    return jsonResponse(buildConfigResponse(origin), 200, { 'Cache-Control': 'no-store' });
   }
 
   if (path === '/api/version' && method === 'GET') {