diff --git a/static/app.js b/static/app.js
index dd6441b..eb6982d 100644
--- a/static/app.js
+++ b/static/app.js
@@ -158,3 +158,7 @@ async function boot() {
 }
 
 boot()
+
+setInterval(() => {
+  if (!drawing && !document.hidden) loadState().catch(showStateError)
+}, 30000)