diff --git a/html/webpage/assets/js/overview.js b/html/webpage/assets/js/overview.js
index 80d4d80..58ac499 100644
--- a/html/webpage/assets/js/overview.js
+++ b/html/webpage/assets/js/overview.js
@@ -49,8 +49,7 @@ function getCardByIndex(index) {
  * @param {StreamerOutputData[]} values 
  */
 function UpdateStreamerCard(values) {
-    if (!Array.isArray(values) || values.length === 0) return;
-
+    
     function setProgress(index, $bar, value, max = 100) {
         const v = Number(value ?? 0);
         const pct = Math.max(0, Math.min(100, Math.round((v / max) * 100)));
@@ -60,6 +59,11 @@ function UpdateStreamerCard(values) {
             .css('width', pct + '%')      // visual width
             .text(pct);             // optional label
     }
+    if (!Array.isArray(values) || values.length === 0) {
+        // create dummy data to disable all cards
+        values = [];
+    }
+
     for (let i = 1; i <= 64; i++) {
         let vv = values.find(v => v.index === i);
         let card = getCardByIndex(i);
@@ -461,7 +465,6 @@ $(document).ready(function () {
                      * @type {StreamerOutputData[]}
                      */
                     let so = JSON.parse(data);
-                    console.log(so);
                     UpdateStreamerCard(so);
                     break;
             }