diff --git a/dev/js/src/hint/alert.js b/dev/js/src/hint/alert.js
index 7847af2..f142890 100644
--- a/dev/js/src/hint/alert.js
+++ b/dev/js/src/hint/alert.js
@@ -30,9 +30,12 @@
      * Show alert.
      */
     show : function (msg) {
-      this.active = true;
       const e = this._el;
-      e.textContent = msg;
+      if (msg !== undefined)
+        e.textContent = msg;
+      if (e.textContent == "")
+        return;
+      this.active = true;
       e.style.display = 'block';
     },
 
diff --git a/dev/js/src/init.js b/dev/js/src/init.js
index 13904ec..7be0a13 100644
--- a/dev/js/src/init.js
+++ b/dev/js/src/init.js
@@ -307,6 +307,7 @@
           if (hint) {
             shiftContent();
             observer.disconnect();
+            KorAP.Hint.alert().show();
           }
         }
       }