diff --git a/src/public/app/widgets/type_widgets/editable_text.js b/src/public/app/widgets/type_widgets/editable_text.js
index c79590ebb..ca7309c87 100644
--- a/src/public/app/widgets/type_widgets/editable_text.js
+++ b/src/public/app/widgets/type_widgets/editable_text.js
@@ -38,6 +38,10 @@ const TPL = `
         cursor: text !important;
     }
     
+    .note-detail-editable-text *:first-child {
+        margin-top: 0 !important;
+    }
+    
     .note-detail-editable-text h1 { font-size: 2.0em; }
     .note-detail-editable-text h2 { font-size: 1.8em; }
     .note-detail-editable-text h3 { font-size: 1.6em; }
@@ -59,10 +63,6 @@ const TPL = `
         /* This is because with empty content height of editor is 0 and it's impossible to click into it */
         min-height: 500px;
     }
-    
-    .note-detail-editable-text p:first-child, .note-detail-editable-text::before {
-        margin-top: 0;
-    }
     </style>
 
     <div class="note-detail-editable-text-editor" tabindex="300"></div>
diff --git a/src/services/note_cache/note_cache_service.js b/src/services/note_cache/note_cache_service.js
index 98c6b3f7c..2471afbca 100644
--- a/src/services/note_cache/note_cache_service.js
+++ b/src/services/note_cache/note_cache_service.js
@@ -49,6 +49,10 @@ function isInAncestor(noteId, ancestorNoteId) {
 
     const note = noteCache.notes[noteId];
 
+    if (!note) {
+        return false;
+    }
+
     for (const parentNote of note.parents) {
         if (isInAncestor(parentNote.noteId, ancestorNoteId)) {
             return true;