diff --git a/static/js/find_address.js b/static/js/find_address.js
index ca18a763..cf01bb50 100644
--- a/static/js/find_address.js
+++ b/static/js/find_address.js
@@ -100,6 +100,11 @@
         button.disabled = true;
         var url = text.url + "?" + new URLSearchParams({q: form.elements.q.value});
         fetch(url, {headers: {"X-Requested-With": "XMLHttpRequest"}}).then(function (response) {
+            if (response.redirected) {
+                // signed out meanwhile: reloading goes to the login form, then back here
+                location.reload();
+                return new Promise(function () {});
+            }
             return response.json();
         }).catch(function () {
             return {error: text.failed};