diff --git a/src/public/javascripts/services/note_detail_relation_map.js b/src/public/javascripts/services/note_detail_relation_map.js
index 9a36a2210..3220466be 100644
--- a/src/public/javascripts/services/note_detail_relation_map.js
+++ b/src/public/javascripts/services/note_detail_relation_map.js
@@ -553,7 +553,13 @@ class NoteDetailRelationMap {
     getZoom() {
         const matrixRegex = /matrix\((-?\d*\.?\d+),\s*0,\s*0,\s*-?\d*\.?\d+,\s*-?\d*\.?\d+,\s*-?\d*\.?\d+\)/;
 
-        const matches = this.$relationMapContainer.css('transform').match(matrixRegex);
+        const transform = this.$relationMapContainer.css('transform');
+
+        const matches = transform.match(matrixRegex);
+
+        if (!matches) {
+            throw new Error("Cannot match transform: " + transform);
+        }
 
         return matches[1];
     }
diff --git a/src/public/javascripts/services/tab_context.js b/src/public/javascripts/services/tab_context.js
index 51ee4cf1f..4becfb264 100644
--- a/src/public/javascripts/services/tab_context.js
+++ b/src/public/javascripts/services/tab_context.js
@@ -101,6 +101,8 @@ class TabContext {
 
         this.setCurrentNotePathToHash();
 
+        this.setTitleBar();
+
         setTimeout(async () => {
             // we include the note into recent list only if the user stayed on the note at least 5 seconds
             if (notePath && notePath === this.notePath) {
@@ -123,6 +125,13 @@ class TabContext {
     show() {
         this.$tabContent.show();
         this.setCurrentNotePathToHash();
+        this.setTitleBar();
+    }
+
+    setTitleBar() {
+        if (!this.$tabContent.is(":visible")) {
+            return;
+        }
 
         document.title = "Trilium Notes";