diff --git a/photon-client/src/router/index.ts b/photon-client/src/router/index.ts
index 4203177274..9e3e78f259 100644
--- a/photon-client/src/router/index.ts
+++ b/photon-client/src/router/index.ts
@@ -10,6 +10,7 @@ import NotFoundView from "@/views/NotFoundView.vue";
 Vue.use(VueRouter);
 
 const router = new VueRouter({
+  // Using HTML5 History Mode is problematic with Javalin because each route is treated as a server endpoint which causes Javalin to return a 404 error before being redirected to the UI.
   // mode: "history",
   base: import.meta.env.BASE_URL,
   routes: [