diff --git a/web/app.js b/web/app.js
index e19b2b3..1983109 100644
--- a/web/app.js
+++ b/web/app.js
@@ -54,6 +54,12 @@ render_graphs_wrapper();
 // filters checkboxes
 function filters_checkboxes() {
     fetch_list().then(function(data){
+        {
+            const node = document.getElementById("filters_checkboxes");
+            while (node.firstChild) {
+                node.removeChild(node.lastChild);
+            }
+        }
         const node = d3.select("#filters_checkboxes");
         for (const itemlist of data) {
             var label = node.append("label");
@@ -69,14 +75,18 @@ function filters_checkboxes() {
 }
 filters_checkboxes()
 // listen to filters changes
+var checkedBefore = getCheckedCheckboxIds('.checkbox-filters');
 $(document).ready(function(){
-    $('#filters').on('show.bs.dropdown', function () {
-        console.log("Opening dropdown");
-    });
-
     $('#filters').on('hidden.bs.dropdown', function () {
-        // console.log("Dropdown hidden");
-        refresh_graphs();
+            const checkedAfter = getCheckedCheckboxIds('.checkbox-filters');
+            if (!(checkedAfter.every(item => checkedBefore.includes(item)) && checkedBefore.every(item => checkedAfter.includes(item)))) {
+                refresh_graphs();
+            }
+            checkedBefore = checkedAfter;
+    });
+    // prevent dropdown menu from closing when clicking inside
+    $('#filters_checkboxes').on('click', function (e) {
+        e.stopPropagation();
     });
 });