diff --git a/web/static/app.js b/web/static/app.js
index a471acf..a95604d 100644
--- a/web/static/app.js
+++ b/web/static/app.js
@@ -481,6 +481,11 @@ async function loadRouteMaster(relationId) {
 
 // ── Init ───────────────────────────────────────────────────────────────────
 
+window.addEventListener('popstate', () => {
+  const match = location.pathname.match(/^\/(\d+)$/);
+  if (match) loadRoute(parseInt(match[1], 10));
+});
+
 if (RELATION_ID) {
   loadRoute(RELATION_ID);
 }