...

static/js/editor.js

@@ -143,7 +143,7 @@ class MarkdownEditor {
         this.currentFile = null;
         this.filenameInput.value = '';
         this.filenameInput.focus();
-        this.editor.setValue('');
+        this.editor.setValue('# New File\n\nStart typing...\n');
         this.updatePreview();
 
         if (window.showNotification) {
@@ -192,7 +192,7 @@ class MarkdownEditor {
      */
     updatePreview() {
         const markdown = this.editor.getValue();
-        let html = this.marked.parse(markdown);
+        let html = window.marked.parse(markdown);
 
         // Process mermaid diagrams
         html = html.replace(/<pre><code class="language-mermaid">([\s\S]*?)<\/code><\/pre>/g, (match, code) => {