From 64df0660c879811e815fa6c9f2790612c8063050 Mon Sep 17 00:00:00 2001
From: Amit Haridas <amit.wh@gmail.com>
Date: Sun, 3 May 2026 16:38:47 +0530
Subject: [PATCH] fix(renderer): initialize DOMPurify with window context

require('dompurify') returns a factory function, not a sanitizer
instance. Calling .sanitize() on the factory threw a TypeError,
which was caught by the preview renderer's try-catch and displayed
a generic "Error rendering preview" message. Fix by invoking the
factory with the renderer's window object.

Amit Haridas
---
 src/renderer.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/renderer.js b/src/renderer.js
index 6c0d320..86b9a58 100644
--- a/src/renderer.js
+++ b/src/renderer.js
@@ -6,7 +6,8 @@
 const { ipcRenderer } = require('electron');
 const marked = require('marked');
 const { markedHighlight } = require('marked-highlight');
-const DOMPurify = require('dompurify');
+const createDOMPurify = require('dompurify');
+const DOMPurify = createDOMPurify(window);
 const hljs = require('highlight.js');
 const { createEditor } = require('./editor/codemirror-setup');
 const { undo, redo } = require('@codemirror/commands');